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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Clear

79°F

26°C

Humidity 29%
Wind Speed ENE 3 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 03 Sep 11:35 AM MDT
Extended Forecast for

Castleford ID

  • Today

    Today: Mostly sunny and hot, with a high near 91. North northwest wind 6 to 8 mph.

    High: 91 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 62. North northwest wind 6 to 8 mph becoming southwest after midnight.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Southwest wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. West northwest wind 7 to 10 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 88. South wind around 7 mph becoming north in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny and hot, with a high near 91. North northwest wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 62. North northwest wind 6 to 8 mph becoming southwest after midnight.
Thursday
Mostly sunny, with a high near 88. Southwest wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 60. West northwest wind 7 to 10 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Friday
Sunny, with a high near 88. South wind around 7 mph becoming north in the afternoon.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 54.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castleford ID
 42.52°N 114.88°W (Elev. 3898 ft)
Last Update:
3:08 am MDT Sep 3, 2025
Forecast Valid:
11am MDT Sep 3, 2025-6pm MDT Sep 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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