Sweet Grass, MT Weather Forecast & Current Conditions

Night: Mostly clear. Lows in the mid 40s. Southeast winds up to 10 mph with gusts to around 25 mph.

Day: Sunny. Highs in the mid 70s. South winds up to 15 mph.

Night: Mostly clear. Lows in the mid 40s. Southwest winds up to 10 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds up to 10 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Highs in the lower 70s. Lows in the upper 40s.

Night: Mostly cloudy. Highs in the lower 70s. Lows in the upper 40s.

Day: Partly sunny. A 20 percent chance of rain in the afternoon. Highs in the upper 60s.

Night: Windy. Mostly cloudy with a 40 percent chance of rain. Lows in the mid 40s.

Day: Cooler. Partly sunny. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the lower 50s. Chance of rain 30 percent.

Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the upper 30s.

Day: Partly sunny. Highs in the mid 50s.

Night: Mostly clear. Patchy fog after midnight. Lows in the upper 40s. Southeast winds 5 to 10 mph with gusts to around 25 mph.

Day: Partly sunny in the morning then clearing. Patchy fog in the morning. Highs in the mid 70s. Southeast winds 5 to 15 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds 5 to 15 mph decreasing to up to 5 mph after midnight.

Day: Mostly sunny. Highs in the upper 70s. Southwest winds up to 10 mph.

Night: Partly cloudy. Lows around 50. Southwest winds up to 5 mph.

Day: Sunny. Highs 73 to 79.

Night: Partly cloudy. Lows in the upper 40s. Highs 71 to 77.

Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 50s.

Day: Mostly sunny. Highs 69 to 75.

Night: Breezy. Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the mid 40s. Chance of rain 40 percent.

Day: Cooler. Partly sunny with a 30 percent chance of rain. Highs in the upper 50s.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain. Lows around 40.

Day: Partly sunny. Highs in the upper 50s.

Night: Mostly clear. Lows in the mid 40s. Southwest winds up to 10 mph.

Day: Sunny. Highs in the mid 70s. South winds up to 10 mph.

Night: Mostly clear. Lows in the upper 40s. Southwest winds 5 to 10 mph.

Day: Sunny. Highs in the mid 70s. Southwest winds 5 to 15 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Highs in the upper 60s. Lows in the mid 40s.

Night: Mostly cloudy. Highs around 70. Lows in the upper 40s.

Day: Partly sunny with a 20 percent chance of rain. Highs in the mid 60s.

Night: Mostly cloudy with a 50 percent chance of rain. Lows in the lower 40s.

Day: Cooler. Mostly cloudy. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the lower 50s. Chance of rain 40 percent.

Night: Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s.

Day: Partly sunny. Highs in the mid 50s.

Night: Mostly clear. Patchy fog early in the morning. Lows in the mid 40s. Southeast winds up to 10 mph.

Day: Sunny. Highs in the upper 70s. South winds up to 10 mph.

Night: Mostly clear. Lows in the mid 40s. Southeast winds up to 10 mph shifting to the southwest after midnight.

Day: Sunny. Highs around 80. Southwest winds up to 10 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest winds up to 5 mph.

Day: Sunny. Highs in the upper 70s.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 70s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 50.

Day: Mostly sunny. Highs in the mid 70s.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows in the mid 40s. Highs in the upper 50s.

Night: Mostly cloudy with a 20 percent chance of rain. Lows around 40.

Day: Partly sunny. Highs in the upper 50s.

Night: Partly cloudy. Patchy fog after midnight. Lows in the mid 40s. Southeast winds up to 15 mph.

Day: Partly sunny in the morning then clearing. Patchy fog in the morning. Highs in the mid 70s. Southeast winds up to 15 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds up to 15 mph.

Day: Mostly sunny. Highs in the upper 70s. South winds up to 10 mph.

Night: Partly cloudy. Lows around 50. South winds up to 5 mph.

Day: Sunny. Highs in the upper 70s.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 70s.

Night: Partly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 50s.

Day: Mostly sunny. Highs in the mid 70s.

Night: Breezy. Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the mid 40s. Chance of rain 40 percent.

Day: Cooler. Partly sunny. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs around 60.

Night: Mostly clear. Lows in the mid 40s. South winds up to 5 mph shifting to the southwest after midnight.

Day: Sunny. Highs in the upper 70s. South winds up to 10 mph.

Night: Mostly clear. Lows in the upper 40s. Southwest winds up to 10 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds up to 10 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows around 50. West winds up to 10 mph.

Day: Partly cloudy. Highs in the mid 70s. Lows in the upper 40s.

Day: Partly cloudy. Highs in the mid 70s. Lows in the upper 40s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s.

Day: Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 70s.

Night: Cooler. Mostly cloudy. A 40 percent chance of rain. Lows in the mid 40s. Highs in the mid 50s.

Night: Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs in the upper 50s.

Night: Mostly clear. Lows in the mid 40s. Southwest winds 5 to 10 mph with gusts to around 25 mph.

Day: Sunny. Highs 61 to 71. Southwest winds 5 to 15 mph.

Night: Mostly clear. Lows in the upper 40s. Southwest winds 5 to 15 mph.

Day: Sunny. Highs 60 to 70. Southwest winds 5 to 15 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest winds 5 to 15 mph.

Day: Partly cloudy. Highs 55 to 67. Lows in the lower 40s.

Day: Partly cloudy. Highs 55 to 67. Lows in the lower 40s.

Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the upper 40s.

Day: Partly sunny with a 50 percent chance of rain. Highs 52 to 62.

Night: Colder. Mostly cloudy. Rain and snow likely in the evening, then snow likely and chance of rain after midnight. Light snow accumulations. Lows 35 to 41. Chance of precipitation 60 percent.

Day: Cooler. Mostly cloudy with a 50 percent chance of rain and snow. Near steady temperature around 40.

Night: Mostly cloudy with a 20 percent chance of rain and snow. Lows 32 to 38.

Day: Partly sunny. Highs 42 to 50.

Night: Mostly clear. Patchy fog after midnight. Lows in the 40s.

Day: Sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s.

Night: Mostly clear. Lows in the mid 40s to lower 50s.

Day: Partly cloudy. Highs in the mid 60s to lower 70s.

Night: Mostly cloudy in the evening then clearing. Lows in the mid 40s to lower 50s.

Day: Mostly sunny. Highs in the 60s.

Night: Partly cloudy. Lows in the 40s to lower 50s.

Day: Mostly cloudy. Highs in the mid 60s to lower 70s.

Night: Mostly cloudy. Lows in the mid 40s to lower 50s.

Day: Mostly cloudy with a 40 percent chance of rain. Highs in the upper 50s to mid 60s.

Night: Rain likely in the evening, then a chance of rain after midnight. Chance of rain 60 percent. Lows in the upper 30s to mid 40s.

Day: Mostly cloudy with a 40 percent chance of rain and snow. Highs in the mid 40s to lower 50s.

Night: Mostly cloudy with a 20 percent chance of rain. Lows in the mid 30s to lower 40s.

Day: Mostly cloudy. Highs in the upper 40s to mid 50s.

Night: Mostly clear. Patchy fog after midnight. Lows in the upper 40s. Southeast winds up to 10 mph.

Day: Sunny. Patchy fog in the morning. Highs in the upper 70s. Southeast winds up to 10 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds up to 15 mph with gusts to around 30 mph.

Day: Sunny. Highs around 80. South winds up to 5 mph.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. East winds up to 5 mph shifting to the south after midnight.

Day: Sunny. Highs in the upper 70s.

Night: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Day: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Day: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows in the upper 40s. Highs in the lower 60s.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs in the lower 60s.

Night: Mostly clear. Lows in the upper 40s. Southeast winds up to 10 mph.

Day: Sunny. Highs in the upper 70s. South winds up to 10 mph.

Night: Mostly clear. Lows in the upper 40s. South winds up to 10 mph with gusts to around 25 mph.

Day: Sunny. Highs around 80. Southwest winds up to 10 mph.

Night: Partly cloudy. Lows in the lower 50s. South winds up to 10 mph.

Day: Sunny. Highs in the upper 70s.

Night: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Day: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Day: Partly cloudy. Lows in the lower 50s. Highs in the upper 70s.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows in the upper 40s. Highs in the lower 60s.

Night: Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs in the lower 60s.

Night: Mostly clear. Patchy fog after midnight. Lows in the 40s to lower 50s.

Day: Mostly sunny. Patchy fog in the morning. Highs in the 70s.

Night: Mostly clear. Lows in the mid 40s to lower 50s.

Day: Partly cloudy. Highs in the 70s.

Night: Mostly cloudy in the evening then clearing. Lows in the mid 40s to lower 50s.

Day: Mostly sunny. Highs in the upper 60s to mid 70s.

Night: Partly cloudy. Lows in the 40s to lower 50s.

Day: Mostly cloudy. Highs in the upper 60s to mid 70s.

Night: Mostly cloudy. Lows in the mid 40s to lower 50s.

Day: Mostly cloudy with a 40 percent chance of rain. Highs in the 60s to lower 70s.

Night: Mostly cloudy with a 50 percent chance of rain. Lows in the 40s.

Day: Mostly cloudy with a 30 percent chance of rain. Highs in the 50s.

Night: Mostly cloudy. Lows in the upper 30s to mid 40s.

Day: Mostly cloudy. Highs in the mid 50s to lower 60s.

Night: Partly cloudy. Patchy fog in the late evening and overnight. Lows in the upper 40s. Southeast winds up to 10 mph with gusts to around 25 mph.

Day: Mostly sunny. Patchy fog in the morning. Highs 69 to 75. Southeast winds 5 to 15 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds 5 to 15 mph with gusts to around 35 mph.

Day: Sunny. Highs 75 to 81. South winds up to 10 mph.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. Southeast winds up to 10 mph.

Day: Sunny. Highs 75 to 81.

Night: Partly cloudy. Lows in the mid 50s. Highs 75 to 81.

Day: Partly cloudy. Lows in the mid 50s. Highs 75 to 81.

Day: Partly cloudy. Lows in the mid 50s. Highs 75 to 81.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows in the upper 40s. Highs 58 to 64.

Night: Mostly cloudy with a 30 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs 57 to 63.

Night: Mostly clear. Patchy fog late in the night. Lows in the 40s to lower 50s.

Day: Mostly sunny. Patchy fog in the morning. Highs in the upper 70s to mid 80s.

Night: Partly cloudy. Lows in the mid 40s to lower 50s.

Day: Partly cloudy. Highs in the mid 70s to lower 80s.

Night: Partly cloudy. Lows in the 40s to lower 50s.

Day: Partly cloudy. Highs in the upper 60s to mid 70s.

Night: Partly cloudy. Lows in the 40s.

Day: Mostly cloudy. Highs in the upper 60s to mid 70s.

Night: Mostly cloudy. A 30 percent chance of rain after midnight. Lows in the mid 40s to lower 50s.

Day: Mostly cloudy with a 50 percent chance of rain. Highs in the 60s.

Night: Rain likely in the evening, then a chance of rain after midnight. Chance of rain 60 percent. Lows in the upper 30s to mid 40s.

Day: Mostly cloudy with a 40 percent chance of rain. Highs in the 50s to lower 60s.

Night: Mostly cloudy. Lows in the mid 30s to lower 40s.

Day: Mostly cloudy. Highs in the mid 50s to lower 60s.

Night: Partly cloudy early in the evening then becoming mostly cloudy. Lows in the upper 40s. Southeast winds 5 to 15 mph.

Day: Partly sunny in the morning then clearing. Highs in the lower 70s. Southeast winds 10 to 15 mph with gusts to around 30 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds 10 to 20 mph.

Day: Sunny. Highs in the upper 70s. Southeast winds 5 to 15 mph.

Night: Partly cloudy. Lows around 50. Southeast winds up to 10 mph.

Day: Partly cloudy. Highs in the upper 70s. Lows in the lower 50s.

Day: Partly cloudy. Highs in the upper 70s. Lows in the lower 50s.

Day: Partly cloudy. Highs in the upper 70s. Lows in the lower 50s.

Night: Breezy. Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the upper 40s. Chance of rain 40 percent.

Day: Breezy, cooler. Partly sunny with a 20 percent chance of rain. Highs in the lower 60s.

Night: Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent.

Day: Partly sunny. Highs in the upper 50s.

Night: Mostly clear. Patchy fog late in the night. Lows in the 40s.

Day: Sunny. Patchy fog in the morning. Highs in the 70s.

Night: Mostly clear. Lows in the 40s.

Day: Partly cloudy. Highs in the upper 60s to mid 70s.

Night: Mostly cloudy in the evening then clearing. Lows in the 40s.

Day: Mostly sunny. Highs in the upper 60s to mid 70s.

Night: Partly cloudy. Lows in the 40s.

Day: Partly cloudy. Highs in the 70s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s.

Day: Partly cloudy. A 20 percent chance of rain in the afternoon. Highs in the mid 60s to lower 70s.

Night: Mostly cloudy with a 40 percent chance of rain. Lows in the upper 30s to mid 40s.

Day: Mostly cloudy with a 30 percent chance of rain. Highs in the 50s.

Night: Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the 30s to lower 40s.

Day: Mostly cloudy. Highs in the mid 50s to lower 60s.

Night: Mostly clear. Lows in the lower 40s. South winds up to 10 mph.

Day: Sunny. Highs in the mid 70s. Southeast winds up to 10 mph with gusts to around 25 mph.

Night: Mostly clear. Lows in the upper 40s. South winds 5 to 15 mph with gusts to around 35 mph.

Day: Sunny. Highs in the upper 70s. South winds up to 10 mph.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. South winds up to 10 mph.

Night: Mostly clear. Highs in the upper 70s. Lows around 50.

Day: Partly cloudy. Highs in the upper 70s. Lows in the lower 50s.

Day: Partly cloudy. Highs in the upper 70s. Lows in the lower 50s.

Night: Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the mid 40s. Chance of rain 30 percent.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Highs in the lower 60s. Lows in the upper 30s.

Day: Partly sunny. Highs in the lower 60s.

Night: Mostly clear. Lows in the upper 40s. South winds up to 10 mph.

Day: Sunny. Highs 71 to 77. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the upper 40s. South winds up to 10 mph.

Day: Sunny. Highs 72 to 78. South winds up to 10 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows around 50. Southwest winds up to 10 mph.

Day: Sunny. Highs 71 to 77.

Night: Partly cloudy. Lows in the lower 50s. Highs 70 to 80.

Day: Partly cloudy. Lows in the lower 50s. Highs 70 to 80.

Day: Partly cloudy. Lows in the lower 50s. Highs 70 to 80.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows in the mid 40s. Highs 55 to 61.

Night: Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s.

Day: Partly sunny. Highs 56 to 62.

Night: Mostly clear. Lows 38 to 46. South winds up to 10 mph.

Day: Sunny. Highs 64 to 72. South winds up to 10 mph with gusts to around 25 mph.

Night: Mostly clear. Lows 42 to 50. South winds 5 to 10 mph with gusts to around 30 mph.

Day: Sunny. Highs 66 to 74. Southwest winds up to 10 mph.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows 46 to 52. Southwest winds up to 10 mph.

Night: Mostly clear. Highs 65 to 73. Lows 46 to 52.

Day: Partly cloudy. Highs 67 to 76. Lows 48 to 56.

Day: Partly cloudy. Highs 67 to 76. Lows 48 to 56.

Night: Colder. Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows 41 to 47. Chance of rain 30 percent.

Day: Cooler. Partly sunny. Chance of rain and snow in the morning, then chance of rain in the afternoon. Highs 52 to 58. Chance of precipitation 40 percent.

Night: Colder. Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows 34 to 40. Chance of rain 30 percent.

Day: Partly sunny. A 20 percent chance of rain in the morning. Highs 52 to 58.

Night: Partly cloudy. Patchy fog in the late evening and overnight. Lows 44 to 50. Southeast winds up to 10 mph.

Day: Mostly sunny. Patchy fog in the morning. Highs in the mid 70s. Southeast winds up to 15 mph.

Night: Mostly clear. Lows in the upper 40s. Southeast winds 5 to 15 mph with gusts to around 30 mph.

Day: Sunny. Highs around 80. Southeast winds up to 10 mph.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. Southeast winds up to 10 mph shifting to the south after midnight.

Day: Mostly sunny. Highs in the upper 70s.

Night: Mostly clear. Lows in the lower 50s. Highs in the lower 80s.

Night: Partly cloudy. Lows in the mid 50s.

Day: Sunny. Highs in the lower 80s.

Night: Breezy. Partly cloudy with a 20 percent chance of rain. Lows around 50.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Highs in the mid 60s. Lows in the lower 40s.

Day: Partly sunny. Highs in the lower 60s.

Night: Mostly clear. Lows in the lower 40s. Southwest winds up to 5 mph.

Day: Sunny. Highs 65 to 73. Southwest winds up to 10 mph.

Night: Mostly clear. Lows in the mid 40s. Southwest winds up to 5 mph.

Day: Mostly sunny. Highs 66 to 74. Southwest winds up to 5 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. West winds up to 10 mph.

Day: Sunny. Highs 64 to 72.

Night: Partly cloudy. Lows 47 to 53. Highs 68 to 76.

Night: Partly cloudy. Lows 47 to 53. Highs 68 to 76.

Day: Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 64 to 72.

Night: Cooler. Mostly cloudy. A 30 percent chance of rain. Lows 38 to 44. Highs 49 to 57.

Night: Mostly cloudy with a 20 percent chance of rain. Lows 34 to 40.

Day: Partly sunny. Highs 51 to 59.