Sweet Grass, MT Weather Forecast & Current Conditions

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. West winds up to 10 mph.

Day: Sunny. Highs in the lower 70s. West winds 5 to 15 mph with gusts to around 30 mph.

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

Day: Mostly sunny. Highs 74 to 80. Southwest winds up to 5 mph shifting to the southeast in the afternoon.

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

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

Night: Breezy, cooler. Partly cloudy. Highs in the upper 50s. Lows in the upper 30s.

Day: Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.

Day: Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.

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

Night: Mostly cloudy. Lows around 50. South winds up to 5 mph shifting to the west after midnight.

Day: Sunny. Highs 73 to 79. West winds 5 to 15 mph.

Night: Partly cloudy. Lows in the upper 40s. West winds up to 10 mph.

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

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

Day: Mostly sunny. Highs 76 to 82.

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

Night: Breezy, cooler. Partly cloudy. Highs 57 to 63. Lows in the lower 40s.

Day: Mostly cloudy. Highs around 60. Lows in the lower 40s.

Day: Mostly cloudy. Highs around 60. Lows in the lower 40s.

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

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

Day: Mostly sunny. Highs in the upper 60s. Southwest winds 5 to 15 mph with gusts to around 30 mph.

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

Day: Mostly sunny. Highs in the mid 70s. Southwest winds up to 10 mph shifting to the southeast with gusts to around 25 mph in the afternoon.

Night: Partly cloudy. Lows around 50. Highs in the mid 70s.

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

Day: Breezy. Much cooler. Partly sunny. A 20 percent chance of rain showers in the morning. Highs in the lower 50s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s.

Day: Mostly cloudy. Highs in the mid 50s. Lows around 40.

Day: Mostly cloudy. Highs in the mid 50s. Lows around 40.

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

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows around 50. North winds up to 5 mph shifting to the west after midnight.

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

Night: Partly cloudy. Lows in the upper 40s. West winds up to 10 mph shifting to the southwest after midnight.

Day: Sunny. Highs in the lower 80s. Southwest winds up to 5 mph shifting to the south 5 to 15 mph in the afternoon.

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

Day: Mostly sunny. Highs in the lower 80s.

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

Night: Cooler. Partly cloudy. Highs in the lower 60s. Lows in the lower 40s.

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

Night: Mostly cloudy. A 20 percent chance of rain. Lows in the lower 40s. Highs in the lower 60s.

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

Night: Mostly cloudy. Lows in the upper 40s. Southeast winds up to 5 mph shifting to the northwest after midnight.

Day: Mostly sunny. Highs in the upper 70s. West winds up to 15 mph.

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

Day: Sunny. Highs in the lower 80s. Southeast winds up to 10 mph.

Night: Mostly clear. Lows in the mid 50s.

Day: Mostly sunny. Highs in the lower 80s.

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

Night: Breezy, cooler. Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.

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

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

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

Day: Mostly sunny. Highs in the upper 70s. Southwest winds up to 5 mph.

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

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

Night: Partly cloudy. Lows in the upper 40s. Southwest winds up to 10 mph.

Day: Sunny. Highs around 80. Southwest winds up to 5 mph shifting to the south 5 to 15 mph in the afternoon.

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

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

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

Night: Cooler. Partly cloudy. Highs in the upper 50s. Lows in the lower 40s.

Night: Mostly cloudy. Highs in the lower 60s. Lows in the lower 40s.

Day: Partly sunny. A 20 percent chance of rain in the afternoon. Highs in the upper 50s.

Day: Mostly sunny. Highs 59 to 69. Southwest winds 5 to 15 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 43 to 49. Southwest winds 5 to 15 mph. Gusts up to 30 mph after midnight.

Day: Mostly sunny. Highs 54 to 64. Southwest winds 10 to 20 mph with gusts to around 35 mph.

Night: Partly cloudy. Lows in the mid 40s. Southwest winds 5 to 15 mph. Gusts up to 30 mph in the evening.

Day: Warmer. Mostly sunny. Highs 62 to 72. South winds up to 10 mph. Gusts up to 25 mph in the afternoon.

Night: Partly cloudy. Lows around 50.

Day: Partly sunny. A 40 percent chance of rain showers in the afternoon. Highs 60 to 70.

Night: Windy, colder. Rain showers in the evening, then rain showers and snow showers after midnight. Lows 35 to 41. Chance of precipitation 90 percent.

Day: Breezy, cooler. Partly sunny. Chance of rain showers and snow showers in the morning, then slight chance of rain showers and snow showers in the afternoon. Highs 39 to 49. Chance of precipitation 50 percent.

Night: Mostly cloudy. Lows 32 to 38. Highs 44 to 52.

Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows 35 to 41.

Day: Partly sunny with a 20 percent chance of rain and snow. Highs 42 to 50.

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: Partly cloudy. Highs in the 60s. Southwest winds to 15 mph.

Night: Partly cloudy. Lows in the 40s.

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

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

Day: Mostly cloudy. A 40 percent chance of rain in the afternoon. Highs in the mid 60s to lower 70s.

Night: Rain likely. Chance of rain 80 percent. Lows in the upper 30s to mid 40s.

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

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 30s to lower 40s.

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

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

Day: Mostly cloudy with a 20 percent chance of rain. Highs in the upper 40s to mid 50s.

Day: Sunny. Highs in the upper 70s. Southwest winds up to 5 mph.

Night: Mostly cloudy. Lows in the lower 50s. East winds up to 5 mph shifting to the southwest after midnight.

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

Night: Mostly clear. Lows around 50. West winds up to 10 mph shifting to the south after midnight.

Day: Sunny. Highs in the lower 80s. South winds up to 10 mph.

Night: Mostly clear. Lows in the mid 50s.

Day: Mostly sunny. Highs in the mid 80s.

Night: Breezy. Mostly cloudy with a 30 percent chance of rain showers. Lows around 50.

Night: Breezy, cooler. Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.

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

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

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

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

Night: Mostly cloudy. Lows in the lower 50s. Southwest winds up to 10 mph.

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

Night: Mostly clear. Lows around 50. Southwest winds up to 10 mph.

Day: Sunny. Highs in the mid 80s. South winds up to 10 mph with gusts to around 25 mph.

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

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

Night: Windy, cooler. Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.

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

Night: Mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs in the lower 60s.

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.

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

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

Day: Mostly cloudy. A 30 percent chance of rain in the afternoon. Highs in the 70s.

Night: Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the 40s.

Day: Partly cloudy. A 20 percent chance of rain in the morning. Cooler. Highs in the mid 50s to lower 60s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 30s to lower 40s.

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

Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the upper 30s to mid 40s.

Day: Mostly cloudy with a 20 percent chance of rain. Highs in the mid 50s to lower 60s.

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

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

Day: Partly sunny in the morning then clearing. Highs 74 to 80. West winds up to 10 mph.

Night: Mostly clear. Lows in the lower 50s. Southwest winds up to 5 mph.

Day: Sunny. Highs 79 to 85. Southeast winds up to 10 mph.

Night: Mostly clear. Lows in the mid 50s.

Day: Mostly sunny. Highs 78 to 84.

Night: Breezy. Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain showers. Lows around 50.

Night: Breezy, cooler. Partly cloudy. Highs 61 to 67. Lows in the lower 40s.

Day: Partly sunny. Highs 60 to 66.

Night: Mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs 59 to 65.

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

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

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

Night: Partly cloudy. Lows in the 40s.

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

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

Day: Mostly cloudy with a 50 percent chance of rain. Highs in the upper 60s to mid 70s.

Night: Rain likely. Chance of rain 70 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: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 30s to lower 40s.

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

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

Day: Mostly cloudy. A 20 percent chance of rain in the afternoon. Highs in the mid 50s to lower 60s.

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

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

Day: Mostly cloudy in the morning then clearing. Highs in the upper 70s. West winds up to 10 mph.

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

Day: Sunny. Highs in the lower 80s. East winds up to 5 mph shifting to the southeast 5 to 15 mph in the afternoon.

Night: Mostly clear. Lows in the mid 50s.

Day: Breezy. Mostly sunny. Highs in the lower 80s.

Night: Windy. Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 40s.

Day: Windy. Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.

Day: Windy. Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.

Night: Mostly cloudy. A 20 percent chance of rain. Lows in the lower 40s. Highs in the lower 60s.

Day: Partly cloudy. Highs in the 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: Mostly clear. Lows in the 40s.

Day: Mostly sunny. Highs in the mid 70s to lower 80s.

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

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

Night: Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s to mid 40s.

Day: Partly cloudy. Cooler. Highs in the 50s to lower 60s.

Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the 30s to lower 40s.

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

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

Day: Mostly cloudy with a 20 percent chance of rain. Highs in the 50s to lower 60s.

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

Night: Mostly cloudy. Lows in the lower 50s. Southeast winds up to 5 mph shifting to the southwest after midnight.

Day: Mostly sunny. Highs in the mid 70s. West winds 5 to 10 mph.

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

Day: Sunny. Highs in the lower 80s. South winds 5 to 15 mph. Gusts up to 30 mph in the afternoon.

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

Night: Breezy. Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 40s.

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

Day: Partly sunny. Highs in the mid 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 40 percent.

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

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

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

Day: Sunny. Highs 71 to 77. Southwest winds 5 to 15 mph.

Night: Mostly clear. Lows around 50. Southwest winds up to 10 mph.

Day: Sunny. Highs 76 to 82. South winds up to 15 mph.

Night: Mostly clear. Lows in the mid 50s. Highs 75 to 81.

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

Night: Cooler. Partly cloudy. Highs 58 to 64. Lows in the lower 40s.

Day: Partly sunny. Highs 60 to 66.

Night: Mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs 57 to 63.

Day: Sunny until late afternoon then becoming partly sunny. Highs 66 to 74. Southwest winds up to 10 mph.

Night: Mostly cloudy. Lows 45 to 53. Southwest winds up to 10 mph.

Day: Sunny. Highs 64 to 72. West winds 5 to 15 mph.

Night: Mostly clear. Lows 45 to 51. South winds up to 10 mph.

Day: Sunny. Highs 69 to 77. South winds 5 to 15 mph.

Night: Mostly clear. Lows 48 to 56. Highs 70 to 78.

Night: Colder. Partly cloudy in the evening then becoming mostly cloudy. A 40 percent chance of rain showers. Lows 42 to 48.

Night: Cooler. Partly cloudy. Highs 54 to 62. Lows 36 to 42.

Day: Partly sunny. Highs 56 to 62.

Night: Mostly cloudy. A 40 percent chance of rain. Lows 38 to 44. Highs 51 to 59.

Day: Sunny. Patchy fog early in the morning. Highs in the upper 70s. South winds up to 5 mph shifting to the east in the afternoon.

Night: Mostly cloudy. Lows in the lower 50s. Southeast winds up to 10 mph shifting to the southwest after midnight.

Day: Partly sunny in the morning then clearing. Highs in the upper 70s. West winds up to 10 mph.

Night: Mostly clear. Lows in the lower 50s. Southwest winds up to 10 mph.

Day: Sunny. Highs in the mid 80s. South winds up to 15 mph. Gusts up to 30 mph in the afternoon.

Night: Mostly clear. Lows in the mid 50s.

Day: Mostly sunny. Highs in the mid 80s.

Night: Breezy. Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the lower 50s.

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

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

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

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

Day: Sunny until late afternoon then becoming partly sunny. Highs 65 to 73. Southwest winds up to 5 mph.

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 44 to 50. Southwest winds up to 10 mph.

Day: Sunny. Highs 64 to 72. Southwest winds up to 10 mph.

Night: Mostly clear. Lows 43 to 49. Southwest winds up to 5 mph.

Day: Sunny. Highs 69 to 77. South winds up to 10 mph with gusts to around 25 mph.

Night: Mostly clear. Lows 48 to 54.

Day: Mostly sunny. Highs 68 to 76.

Night: Colder. Mostly cloudy with a 40 percent chance of rain showers. Lows 39 to 45.

Night: Cooler. Partly cloudy. Highs 51 to 59. Lows in the upper 30s.

Day: Partly sunny. Highs 54 to 62.

Night: Mostly cloudy. A 20 percent chance of rain. Lows 37 to 43. Highs 51 to 59.