Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. 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

81°F

27°C

Humidity 28%
Wind Speed E 6 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Aug 06:00 PM MDT
Detailed forecast for

Southern Twin Falls County

Tonight
Mostly cloudy with isolated showers and thunderstorms this evening, then partly cloudy after midnight. Chance of rain 20 percent. Lows 56 to 61. Windy. South winds around 25 mph after midnight. Gusts to 35 mph.
Tuesday
Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Chance of rain 30 percent. Highs 81 to 86. Windy. South winds around 25 mph in the morning. Gusts to 35 mph.
Tuesday Night
Increasing clouds. Lows 52 to 57.
Wednesday
Mostly sunny. Not as warm with highs 72 to 77. Breezy.
Wednesday Night
Mostly cloudy. Lows 49 to 54.
Thursday And Thursday Night
Partly cloudy. Highs 74 to 79. Lows 46 to 51.
Friday
Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Chance of rain 20 percent. Highs 73 to 78.
Friday Night
Partly cloudy with a 20 percent chance of rain showers. Lows 48 to 53.
Saturday
Sunny. Highs 74 to 79.
Saturday Night
Partly cloudy with a 20 percent chance of showers. Lows 49 to 54.
Sunday
Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Chance of rain 30 percent. Highs 73 to 78.
Sunday Night
Mostly cloudy. A slight chance of rain showers and thunderstorms in the evening. Chance of rain 20 percent. Lows 49 to 54.
Labor Day
Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Chance of rain 20 percent. Highs 73 to 78.



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230 PM MDT Mon Aug 31 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database