Weather WorldThornton Lake, MT 7-Day Weather Forecast
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Thornton Lake Weather Forecast
Thornton Lake, MT Weather Forecast Date: 1222 PM MDT Tue Aug 04 2026
Weather forecast for Thornton Lake, MT
Tonight Lo: 36°F Lo: 2°C |
Tonight... Mostly clear. Patchy smoke. Lows in the mid 30s to lower 40s. |
| Wed Hi: 76°FHi: 24°C Lo: 46°F Lo: 8°C |
Wednesday... Sunny. Patchy smoke. Highs in the mid 70s to lower 80s. |
| Thu Hi: 86°FHi: 30°C Lo: 46°F Lo: 8°C |
Thursday... Sunny. Patchy smoke in the morning. Highs in the 80s to lower 90s. |
Fri Hi: 86°FHi: 30°C Lo: 50°F Lo: 10°C |
Friday... Sunny. Highs in the mid 80s to lower 90s. |
| Sat Hi: 86°FHi: 30°C Lo: 50°F Lo: 10°C |
Saturday... Sunny. Highs in the mid 80s to lower 90s. |
| Sun Hi: 85°FHi: 29°C Lo: 46°F Lo: 8°C |
Sunday... Mostly sunny. Highs in the 80s. |
| Mon Hi: 85°FHi: 29°C Lo: 46°F Lo: 8°C |
Monday... Mostly sunny. Highs in the 80s. |
Thornton Lake Radar Loop
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