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

Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

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. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

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

Partly Cloudy

77°F

25°C

Humidity 41%
Wind Speed NW 3 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Aug 11:20 AM MDT
Extended Forecast for

Rexburg ID

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 91. Light west southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 56. South wind 5 to 11 mph becoming east northeast after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 80. East wind 5 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 52. West southwest wind 7 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after noon. High near 72. South southwest wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    High: 72 °F

    Showers

  • 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 49. Chance of precipitation is 60%.

    Low: 49 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers then
    Sunny

  • Sunday Night

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

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of rain after noon. Sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Slight Chance
    Rain

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 91. Light west southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 56. South wind 5 to 11 mph becoming east northeast after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 80. East wind 5 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 52. West southwest wind 7 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Saturday
Showers, with thunderstorms also possible after noon. High near 72. South southwest wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms before noon. Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 43.
Monday
A 20 percent chance of rain after noon. Sunny, with a high near 77.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
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 111.8°W (Elev. 4872 ft)
Last Update:
11:31 am MDT Aug 27, 2026
Forecast Valid:
11am MDT Aug 27, 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