Weather WorldJefferson County, ID 7-Day Weather Forecast
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Jefferson County Weather Forecast
Jefferson County, ID Weather Forecast Date: 1232 PM MDT Tue Sep 22 2026
Weather forecast for Jefferson County, ID
Tonight Lo: 45°F Lo: 7°C |
Tonight... Mostly cloudy with scattered rain showers and isolated thunderstorms. Lows 41 to 48. South winds up to 10 mph in the evening...Becoming light and variable. |
Wed Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Wednesday... Partly sunny in the morning then clearing. Highs 66 to 73. Light and variable winds...Becoming south up to 10 mph in the afternoon. |
Thu Hi: 76°FHi: 24°C Lo: 49°F Lo: 9°C |
Thursday... Sunny. Highs 72 to 79. Northeast winds around 10 mph. |
| Fri Hi: 76°FHi: 24°C Lo: 47°F Lo: 8°C |
Friday... Sunny. Highs 72 to 79. |
| Sat Hi: 67°FHi: 19°C Lo: 45°F Lo: 7°C |
Saturday... Partly cloudy. Breezy. Lows 42 to 51. Highs 63 to 70. |
Sun Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Sunday... Mostly cloudy. Lows 39 to 49. Highs 65 to 72. |
| Sun Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Sunday... Mostly cloudy. Lows 39 to 49. Highs 65 to 72. |
| Mon Hi: 65°FHi: 18°C Lo: 41°F Lo: 5°C |
Monday... Partly cloudy. Highs 61 to 68. Lows 36 to 44. |
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