National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

Lat: 43.83167°NLon: 111.80611°WElev: 4859.0ft.

Clear

88°F

31°C

Humidity 16%
Wind Speed WNW 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 26 Aug 06:35 PM MDT
Extended Forecast for

Rexburg ID

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Southwest wind around 6 mph becoming northeast in the evening.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. East northeast wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 55 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 81. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    High: 81 °F

    Cloudy then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 52. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 74. Breezy.

    High: 74 °F

    Chance
    Showers then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Southwest wind around 6 mph becoming northeast in the evening.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. East northeast wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Friday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 81. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 52. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Saturday
Showers likely, with thunderstorms also possible after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 74. Breezy.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 77.
Monday Night
A 30 percent chance of rain and thunderstorms. Partly cloudy, with a low around 46.
Tuesday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rexburg ID
 43.83°N 111.77°W (Elev. 4892 ft)
Last Update:
5:31 pm MDT Aug 26, 2026
Forecast Valid:
6pm MDT Aug 26, 2026-6pm MDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation