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Boulder Weather Forecast
Boulder, MT Weather Forecast Date: 336 PM MDT Tue Sep 15 2026
Weather forecast for Boulder, MT
Tonight Lo: 39°F Lo: 4°C |
Tonight... Partly cloudy then becoming mostly cloudy after midnight then becoming partly cloudy. Lows 35 to 41. North winds 5 to 10 mph with gusts to around 30 mph. |
Wed Hi: 61°FHi: 16°C Lo: 42°F Lo: 6°C |
Wednesday... Mostly sunny. Highs 56 to 64. North winds up to 10 mph with gusts to around 25 mph. |
| Thu Hi: 71°FHi: 22°C Lo: 48°F Lo: 9°C |
Thursday... Warmer. Mostly sunny. Highs 66 to 74. South winds up to 10 mph. |
Fri Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Friday... Partly sunny with chance of rain in the morning, then cloudy with rain showers and chance of thunderstorms in the afternoon. Highs 60 to 68. Chance of precipitation 90%. |
| Sat Hi: 63°FHi: 17°C Lo: 44°F Lo: 7°C |
Saturday... Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 58 to 66. Chance of precipitation 50%. |
| Sun Hi: 68°FHi: 20°C Lo: 44°F Lo: 7°C |
Sunday... Mostly clear. Lows 39 to 47. Highs 62 to 72. |
| Mon Hi: 68°FHi: 20°C Lo: 44°F Lo: 7°C |
Monday... Mostly clear. Lows 39 to 47. Highs 62 to 72. |
| Mon Hi: 68°FHi: 20°C Lo: 46°F Lo: 8°C |
Monday... Mostly clear. Lows 39 to 47. Highs 62 to 72. |
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