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Grant Weather Forecast
Grant, MT Weather Forecast Date: 336 PM MDT Sat Sep 05 2026
Weather forecast for Grant, MT
Tonight Lo: 45°F Lo: 7°C |
Tonight... Mostly clear until early morning then becoming mostly cloudy. Patchy fog late in the night. Lows in the mid 40s. Southeast winds 5 to 10 mph with gusts to around 35 mph shifting to the northeast after midnight. |
| Sun Hi: 78°FHi: 26°C Lo: 45°F Lo: 7°C |
Sunday... Sunny. Patchy fog in the morning. Highs 74 to 80. Northeast winds up to 5 mph with gusts to around 20 mph shifting to the southeast 5 to 15 mph with gusts to around 40 mph in the afternoon. |
Labor Day Hi: 64°FHi: 18°C Lo: 41°F Lo: 5°C |
Labor Day... Breezy, cooler. Mostly cloudy. Patchy fog in the morning. Rain showers likely and slight chance of thunderstorms in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 66. Southwest winds 5 to 15 mph with gusts to around 30 mph increasing to 15 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 70%. |
Tue Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Tuesday... Mostly clear. Highs 65 to 71. Lows in the lower 40s. |
Wed Hi: 76°FHi: 24°C Lo: 45°F Lo: 7°C |
Wednesday... Partly cloudy. Highs 72 to 78. Lows in the mid 40s. |
| Thu Hi: 78°FHi: 26°C Lo: 49°F Lo: 9°C |
Thursday... Sunny. Highs 74 to 80. |
Fri Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Friday... Mostly sunny with a 20% chance of rain showers. Highs 71 to 77. |
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