Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

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

Clear

73°F

23°C

Humidity 27%
Wind Speed S 6 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Aug 03:00 AM MDT
Extended Forecast for

Twin Falls ID

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. Light south wind.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 91. Light and variable wind becoming northwest 5 to 9 mph in the morning.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. North northwest wind around 5 mph becoming light and variable  after midnight.

    Low: 63 °F

    Partly Cloudy

  • Thursday

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

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. Light south wind.
Tuesday
Mostly sunny and hot, with a high near 91. Light and variable wind becoming northwest 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 62. Northwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Mostly sunny and hot, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 63. North northwest wind around 5 mph becoming light and variable after midnight.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny and hot, with a high near 99.
Friday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny and hot, with a high near 90.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 62.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Twin Falls ID
 42.56°N 114.47°W (Elev. 3698 ft)
12:29 am MDT Aug 18, 2026
3am MDT Aug 18, 2026-6pm MDT Aug 24, 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