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

Joslin Field - Magic Valley Regional Airport (KTWF)

Lat: 42.4785°NLon: 114.47739°WElev: 4163.0ft.

Clear

68°F

20°C

Humidity 28%
Wind Speed SSW 10 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 19 Aug 03:20 AM MDT
Extended Forecast for

6 Miles SW Filer ID

Heat Advisory August 20, 12:00pm until August 21, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Clear, with a low around 62. South southwest wind around 6 mph.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92. Southwest wind around 7 mph becoming north in the afternoon.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. North wind 5 to 11 mph becoming south after midnight.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 97. South southeast wind 7 to 9 mph becoming north northwest in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. North northwest wind 8 to 11 mph becoming south after midnight.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 62. South southwest wind around 6 mph.
Wednesday
Mostly sunny and hot, with a high near 92. Southwest wind around 7 mph becoming north in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. North wind 5 to 11 mph becoming south after midnight.
Thursday
Mostly sunny and hot, with a high near 97. South southeast wind 7 to 9 mph becoming north northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. North northwest wind 8 to 11 mph becoming south after midnight.
Friday
Mostly sunny and hot, with a high near 97.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 90.
Saturday Night
Mostly cloudy, with a low around 64.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 61.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Filer ID
 42.52°N 114.7°W (Elev. 4065 ft)
12:29 am MDT Aug 19, 2026
3am 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