Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, 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

59°F

15°C

Humidity 67%
Wind Speed NNE 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 Aug 12:55 AM MDT
Extended Forecast for

4 Miles WNW Ashton ID

  • Overnight

    Overnight: Mostly clear, with a low around 49. Northeast wind around 7 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West southwest wind 5 to 8 mph becoming east northeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Northeast wind 5 to 7 mph becoming light and variable.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. West southwest wind around 7 mph becoming east northeast after midnight.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before noon, then a 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 Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 49. Northeast wind around 7 mph.
Wednesday
Sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 52. West southwest wind 5 to 8 mph becoming east northeast after midnight.
Thursday
Sunny, with a high near 91. Northeast wind 5 to 7 mph becoming light and variable.
Thursday Night
Partly cloudy, with a low around 56. West southwest wind around 7 mph becoming east northeast after midnight.
Friday
Mostly sunny, with a high near 93.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 58.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 51.
Monday
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
A 30 percent chance of rain and thunderstorms. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Ashton ID
 44.09°N 111.54°W (Elev. 5256 ft)
12:31 am MDT Aug 19, 2026
1am MDT Aug 19, 2026-6pm MDT Aug 25, 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