Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Clear

80°F

27°C

Humidity 17%
Wind Speed W 8 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 32°F (0°C)
Visibility 7.00 mi
Heat Index78°F (26°C)
Last update 26 Jul 08:53 AM MDT
Extended Forecast for

4 Miles ENE Castleford ID

  • Today

    Today: A 20 percent chance of showers and thunderstorms before noon.  Widespread smoke, mainly between 10am and noon. Sunny and hot, with a high near 94. Northwest wind 8 to 10 mph.

    High: 94 °F

    Slight Chance
    T-storms then
    Areas Smoke

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 64. North northwest wind 6 to 10 mph becoming south southwest after midnight.

    Low: 64 °F

    Patchy Smoke

  • Monday

    Monday: Widespread smoke, mainly between 7am and 3pm. Mostly sunny and hot, with a high near 93. West southwest wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 93 °F

    Smoke

  • Monday Night

    Monday Night: Patchy smoke. Mostly clear, with a low around 62. Northwest wind 6 to 9 mph becoming south southwest after midnight.

    Low: 62 °F

    Patchy Smoke

  • Tuesday

    Tuesday: Areas of smoke. Sunny and hot, with a high near 95. South southwest wind 5 to 8 mph becoming north northwest in the afternoon.

    High: 95 °F

    Areas Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke. Mostly clear, with a low around 64.

    Low: 64 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before noon. Sunny and hot, with a high near 94.

    High: 94 °F

    Patchy Smoke
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before noon. Widespread smoke, mainly between 10am and noon. Sunny and hot, with a high near 94. Northwest wind 8 to 10 mph.
Tonight
Patchy smoke. Mostly clear, with a low around 64. North northwest wind 6 to 10 mph becoming south southwest after midnight.
Monday
Widespread smoke, mainly between 7am and 3pm. Mostly sunny and hot, with a high near 93. West southwest wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Patchy smoke. Mostly clear, with a low around 62. Northwest wind 6 to 9 mph becoming south southwest after midnight.
Tuesday
Areas of smoke. Sunny and hot, with a high near 95. South southwest wind 5 to 8 mph becoming north northwest in the afternoon.
Tuesday Night
Patchy smoke. Mostly clear, with a low around 64.
Wednesday
Patchy smoke before noon. Sunny and hot, with a high near 94.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Clear, with a low around 64.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Castleford ID
 42.53°N 114.79°W (Elev. 3924 ft)
8:01 am MDT Jul 26, 2026
9am MDT Jul 26, 2026-6pm MDT Aug 1, 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