Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Rexburg, Rexburg-Madison County Airport (KRXE)

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

Clear

57°F

14°C

Humidity 76%
Wind Speed NE 3 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Aug 05:00 AM MDT
Extended Forecast for

Ashton ID

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

    Today: Mostly sunny, with a high near 93. East northeast wind 5 to 7 mph becoming calm  in the morning.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 2am.  Mostly cloudy, with a low around 59. Light and variable wind becoming east 5 to 7 mph in the evening.  Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 86. East northeast wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 54. South wind 5 to 8 mph becoming east after midnight.  Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 3pm.  Partly sunny, with a high near 83. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 93. East northeast wind 5 to 7 mph becoming calm in the morning.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 2am. Mostly cloudy, with a low around 59. Light and variable wind becoming east 5 to 7 mph in the evening. Chance of precipitation is 20%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. East northeast wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. South wind 5 to 8 mph becoming east after midnight. Chance of precipitation is 60%.
Sunday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 83. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 52.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Ashton ID
 44.08°N 111.45°W (Elev. 5299 ft)
3:15 am MDT Aug 21, 2026
5am MDT Aug 21, 2026-6pm MDT Aug 27, 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