Weather WorldJefferson County, ID 7-Day Night Weather Forecast
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Jefferson County, ID Weather Forecast
Jefferson County, ID Weather Forecast Date: 238 AM MDT Sun Sep 13 2026
The area/counties/county of: Upper Snake River Plain, including: Idaho Falls, Rexburg, and St. Anthony.or toggle through each period.
Today... Sunny, breezy. Highs 69 to 76. Southwest winds 15 to 25 mph. Gusts up to 35 mph in the afternoon.
Tonight... Mostly clear. Breezy, colder. Lows 34 to 44. Southwest winds 15 to 25 mph.
Monday... Sunny. Highs 60 to 68. Southwest winds 10 to 20 mph.
Monday Night... Mostly clear. Lows 33 to 41. South winds around 10 mph.
Tuesday... Sunny, warmer. Highs 67 to 75. South winds up to 10 mph.
Tuesday Night... Mostly clear. Lows 38 to 48. Highs 69 to 76.
Wednesday... Mostly clear. Lows 38 to 48. Highs 69 to 76.
Wednesday Night... Mostly clear with a slight chance of rain. Lows 38 to 48.
Thursday... Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 68 to 75.
Thursday Night... Partly cloudy with a chance of rain. Lows 38 to 47.
Friday... Mostly clear. Highs 70 to 80. Lows 38 to 46.
POP = Probability of Precipitation
Jefferson County Radar Loop
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