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Boulder Weather Forecast
Boulder, MT Weather Forecast Date: 422 PM MDT Sat Sep 12 2026
Weather forecast for Boulder, MT
Tonight Lo: 40°F Lo: 4°C |
Tonight... Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. Lows 35 to 43. Northeast winds up to 10 mph with gusts to around 30 mph. |
Sun Hi: 66°FHi: 19°C Lo: 38°F Lo: 3°C |
Sunday... Mostly sunny. A 20% chance of rain showers in the afternoon. Highs 60 to 70. Southeast winds up to 10 mph shifting to the west with gusts to around 30 mph in the afternoon. |
Mon Hi: 54°FHi: 12°C Lo: 36°F Lo: 2°C |
Monday... Breezy. Mostly sunny. Highs 48 to 58. West winds 10 to 25 mph with gusts to around 40 mph. |
| Tue Hi: 60°FHi: 16°C Lo: 40°F Lo: 4°C |
Tuesday... Not as cool. Mostly sunny. Highs 54 to 64. |
| Wed Hi: 58°FHi: 14°C Lo: 41°F Lo: 5°C |
Wednesday... Mostly sunny. Highs 53 to 61. |
| Thu Hi: 67°FHi: 19°C Lo: 41°F Lo: 5°C |
Thursday... Mostly clear. Lows 35 to 46. Highs 61 to 71. |
| Thu Hi: 67°FHi: 19°C Lo: 41°F Lo: 5°C |
Thursday... Mostly clear. Lows 35 to 46. Highs 61 to 71. |
| Fri Hi: 68°FHi: 20°C Lo: 45°F Lo: 7°C |
Friday... Sunny with a 20% chance of rain showers. Highs 63 to 71. |
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