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°NLon: 114.47739°WElev: 4163.0ft.

Clear

84°F

29°C

Humidity 20%
Wind Speed ENE 9 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 31 Aug 04:53 PM MDT
Extended Forecast for

Twin Falls ID

  • Tonight

    Tonight: Isolated showers and thunderstorms between 9pm and 10pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northeast wind 5 to 10 mph becoming south in the evening.  Chance of precipitation is 20%.

    Low: 59 °F

    Isolated
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 86. East wind 8 to 11 mph becoming south in the afternoon. Winds could gust as high as 23 mph.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 56. East southeast wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then clearing, with a high near 76. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 76 °F

    Clearing

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

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

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers and thunderstorms between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northeast wind 5 to 10 mph becoming south in the evening. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 86. East wind 8 to 11 mph becoming south in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 56. East southeast wind 7 to 9 mph, with gusts as high as 22 mph.
Wednesday
Cloudy through mid morning, then clearing, with a high near 76. West wind 10 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Labor Day
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Twin Falls ID
 42.56°N 114.47°W (Elev. 3698 ft)
12:30 pm MDT Aug 31, 2026
5pm MDT Aug 31, 2026-6pm MDT Sep 7, 2026
 
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