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° N Lon: 114.47739° W Elev: 4163.0 ft.

Clear

90°F

32°C

Humidity 24%
Wind Speed NNW 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 17 Aug 07:00 PM MDT
Detailed forecast for

Southern Twin Falls County

Tonight
Mostly cloudy. A slight chance of showers and thunderstorms this evening. Chance of rain 20 percent. Lows 62 to 67.
Tuesday
Decreasing clouds. Highs 87 to 92.
Tuesday Night
Partly cloudy in the evening, then clearing. Lows 60 to 65.
Wednesday
Mostly sunny. Highs 89 to 94.
Wednesday Night
Partly cloudy. Lows 62 to 67.
Thursday
Mostly sunny. Highs 93 to 98.
Thursday Night
Decreasing clouds. Lows 65 to 70.
Friday
Mostly sunny. Highs 93 to 98.
Friday Night
Mostly cloudy with a 20 percent chance of showers. Lows 66 to 71.
Saturday
Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Chance of rain 30 percent. Highs 86 to 91.
Saturday Night
Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Chance of rain 20 percent. Lows 60 to 65.
Sunday
Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Chance of rain 30 percent. Highs 82 to 87.
Sunday Night
Partly cloudy. A slight chance of showers in the evening. Chance of rain 20 percent. Lows 59 to 64.
Monday
Partly cloudy. A chance of showers and thunderstorms in the afternoon. Chance of rain 30 percent. Highs 84 to 89.



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230 PM MDT Mon Aug 17 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database