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

Heavy Rainfall and Severe Thunderstorms in the Midwest and Southwest; Heat Continues in the Southern U.S.

Heavy to excessive rainfall could bring flooding today through Thursday across parts of the central Plains into the Midwest and southern Arizona and New Mexico. Scattered strong to severe thunderstorms may impact parts of eastern Nebraska into western Iowa later today into early evening. Heat Advisories remain in place across much of east Texas into the mid-Mississippi Valley today and Tuesday. Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Clear

64°F

18°C

Humidity 29%
Wind Speed WNW 12 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 14 Sep 05:00 PM MDT
Extended Forecast for

Twin Falls ID

  • Tonight

    Tonight: Mostly clear, with a low around 41. West northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 76. Light and variable wind becoming east 5 to 8 mph in the morning.

    High: 76 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. North northwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the morning.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. East wind 6 to 8 mph becoming south after midnight.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 41. West northwest wind 5 to 9 mph becoming calm after midnight.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 76. Light and variable wind becoming east 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 48. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 55. East wind 6 to 8 mph becoming south after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Twin Falls ID
 42.56°N 114.47°W (Elev. 3698 ft)
Last Update:
1:54 pm MDT Sep 14, 2026
Forecast Valid:
5pm MDT Sep 14, 2026-6pm MDT Sep 21, 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