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Upper Reservoir, MT 7-Day Weather Forecast
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Upper Reservoir Weather Forecast
Upper Reservoir, MT Weather Forecast Date: 1223 PM MDT Fri Aug 14 2026
Weather forecast for Upper Reservoir, MT
Tonight Lo: 40°F Lo: 4°C |
Tonight... Mostly cloudy with a 50% chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Patchy smoke early in the evening. Patchy fog in the late evening and early morning, then areas of fog late in the night. Some thunderstorms May produce heavy rainfall. Lows in the upper 30s to mid 40s. |
Sat Hi: 70°FHi: 21°C Lo: 40°F Lo: 4°C |
Saturday... Partly cloudy. Areas of fog in the morning. A 50% chance of showers and thunderstorms in the afternoon. Some thunderstorms May produce heavy rainfall. Highs in the upper 60s to mid 70s. |
| Sun Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Sunday... Partly cloudy. Areas of fog in the morning. A 20% chance of showers and thunderstorms in the afternoon. Some thunderstorms May produce heavy rainfall. Highs in the 70s. |
| Mon Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Monday... Mostly cloudy. A 20% chance of showers and thunderstorms in the afternoon. Highs in the 70s. |
| Tue Hi: 70°FHi: 21°C Lo: 40°F Lo: 4°C |
Tuesday... A chance of rain in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Chance of precipitation 60%. Highs in the upper 60s to mid 70s. |
| Wed Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Wednesday... Partly cloudy. Slight chance of rain in the morning, then slight chance of showers and thunderstorms in the afternoon. Chance of precipitation 20%. Highs in the upper 60s to mid 70s. |
Thu Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Thursday... Mostly sunny. Highs in the 70s. |
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