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

Idaho Falls Regional Airport (KIDA)

Lat: 43.52083°NLon: 112.06611°WElev: 4741.0ft.

Clear

64°F

18°C

Humidity 48%
Wind Speed NW 5 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 19 Aug 12:00 AM MDT
Extended Forecast for

4 Miles SW Basalt ID

  • Overnight

    Overnight: Mostly clear, with a low around 53. South southwest wind around 5 mph becoming calm.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Light and variable wind becoming southeast around 6 mph in the evening.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. East wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. West southwest wind around 6 mph becoming east after midnight.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of rain before noon, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Chance Rain
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. South southwest wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 55. Light and variable wind becoming southeast around 6 mph in the evening.
Thursday
Sunny, with a high near 91. East wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 59. West southwest wind around 6 mph becoming east after midnight.
Friday
Mostly sunny, with a high near 92.
Friday Night
A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 61.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 84. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 55.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Basalt ID
 43.27°N 112.21°W (Elev. 4564 ft)
11:31 pm MDT Aug 18, 2026
12am 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