Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

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

Clear

73°F

23°C

Humidity 38%
Wind Speed E 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Aug 09:15 PM MDT
Extended Forecast for

7 Miles NNW Rexburg-Madison County Airport ID

Heat Advisory August 21, 12:00pm until August 21, 10:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 52. East southeast wind 6 to 8 mph becoming northeast in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Northeast wind 5 to 8 mph becoming light and variable.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. West southwest wind 6 to 8 mph becoming east northeast after midnight.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 94. East northeast wind 5 to 7 mph becoming light and variable.

    High: 94 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 58. East northeast wind 6 to 9 mph.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain before noon, then a slight chance of showers and thunderstorms after noon.  Partly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Chance Rain
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. East southeast wind 6 to 8 mph becoming northeast in the evening.
Thursday
Sunny, with a high near 92. Northeast wind 5 to 8 mph becoming light and variable.
Thursday Night
Partly cloudy, with a low around 56. West southwest wind 6 to 8 mph becoming east northeast after midnight.
Friday
Mostly sunny, with a high near 94. East northeast wind 5 to 7 mph becoming light and variable.
Friday Night
A slight chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 58. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Saturday
A chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 51.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNW Rexburg-Madison County Airport ID
 43.91°N 111.87°W (Elev. 4856 ft)
5:31 pm MDT Aug 19, 2026
9pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
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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