Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Clear

84°F

29°C

Humidity 27%
Wind Speed SE 11 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 Aug 07:53 PM MDT
Extended Forecast for

5 Miles WNW Castleford ID

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South wind 6 to 9 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers between 3pm and 4pm.  Mostly sunny and hot, with a high near 93. South wind 5 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 7pm.  Increasing clouds, with a low around 66. West northwest wind 7 to 10 mph becoming south in the evening. Winds could gust as high as 21 mph.

    Low: 66 °F

    Slight Chance
    Showers then
    Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after noon.  Mostly cloudy, with a high near 81. West wind around 10 mph, with gusts as high as 21 mph.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around 58. West wind 7 to 11 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Saturday

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

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. South wind 6 to 9 mph.
Thursday
A 20 percent chance of showers between 3pm and 4pm. Mostly sunny and hot, with a high near 93. South wind 5 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers before 7pm. Increasing clouds, with a low around 66. West northwest wind 7 to 10 mph becoming south in the evening. Winds could gust as high as 21 mph.
Friday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 81. West wind around 10 mph, with gusts as high as 21 mph.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 58. West wind 7 to 11 mph becoming south southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 51.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Castleford ID
 42.55°N 114.97°W (Elev. 3855 ft)
11:13 am MDT Aug 26, 2026
8pm MDT Aug 26, 2026-6pm MDT Sep 2, 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