National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Rain

66°F

19°C

Humidity 37%
Wind Speed WSW 17 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Last update 02 Aug 07:15 AM MDT
Extended Forecast for

17 Miles S Castleford ID

  • Today

    Today: Patchy smoke. Sunny, with a high near 84. West wind 11 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 84 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 51. North northwest wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 51 °F

    Patchy Smoke

  • Monday

    Monday: Patchy smoke before 3pm. Sunny, with a high near 79. West wind 11 to 17 mph.

    High: 79 °F

    Patchy Smoke

  • Monday Night

    Monday Night: Patchy smoke after 5am. Mostly clear, with a low around 51. North wind 8 to 13 mph becoming southwest after midnight.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Smoke

  • Tuesday

    Tuesday: Sunny, with a high near 84. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Today
Patchy smoke. Sunny, with a high near 84. West wind 11 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Patchy smoke. Mostly clear, with a low around 51. North northwest wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.
Monday
Patchy smoke before 3pm. Sunny, with a high near 79. West wind 11 to 17 mph.
Monday Night
Patchy smoke after 5am. Mostly clear, with a low around 51. North wind 8 to 13 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 84. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny and hot, with a high near 90.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Clear, with a low around 65.
Friday
Sunny and hot, with a high near 95.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles S Castleford ID
 42.27°N 114.92°W (Elev. 5259 ft)
Last Update:
12:29 am MDT Aug 2, 2026
Forecast Valid:
7am MDT Aug 2, 2026-6pm MDT Aug 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation