Weather WorldJack Reservoir, MT 7-Day Weather Forecast
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Jack Reservoir Weather Forecast
Jack Reservoir, MT Weather Forecast Date: 901 AM MDT Tue Oct 20 2026
Weather forecast for Jack Reservoir, MT
Today Hi: 59°FHi: 15°C Lo: 31°F Lo: -1°C |
Rest of Today... Mostly sunny. Highs in the upper 50s. North wind around 10 mph. |
| Wed Hi: 60°FHi: 16°C Lo: 41°F Lo: 5°C |
Wednesday... Mostly sunny. Highs around 60. Southeast wind 10 to 15 mph. |
| Thu Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Thursday... Sunny. Highs in the upper 60s. South wind 5 to 10 mph. |
Fri Hi: 61°FHi: 16°C Lo: 29°F Lo: -2°C |
Friday... Rain likely. Highs in the lower 60s. |
Sat Hi: 40°FHi: 4°C Lo: 21°F Lo: -6°C |
Saturday... A slight chance of snow. Windy and much cooler with highs around 40. |
Sun Hi: 39°FHi: 4°C Lo: 21°F Lo: -6°C |
Sunday... Mostly cloudy. Lows in the lower 20s. Highs in the upper 30s. |
| Mon Hi: 39°FHi: 4°C Lo: 21°F Lo: -6°C |
Monday... Mostly cloudy. Lows in the lower 20s. Highs in the upper 30s. |
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