Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fog

65°F

18°C

Humidity 98%
Wind Speed W 3 mph
Barometer 30.01 in
Dewpoint 65°F (18°C)
Visibility 0.50 mi
Last update 26 Aug 5:35 am CDT
Extended Forecast for

Chelsea IA

  • Today

    Today: Sunny, with a high near 83. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Northwest wind 3 to 7 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. North northwest wind 3 to 7 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Partly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 60. Northwest wind 3 to 7 mph.
Thursday
Sunny, with a high near 82. North northwest wind 3 to 7 mph.
Thursday Night
Clear, with a low around 56. Light and variable wind.
Friday
Sunny, with a high near 85. Light and variable wind.
Friday Night
Partly cloudy, with a low around 63.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 86.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 89.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea IA
 41.92°N 92.39°W
4:43 am CDT Aug 26, 2026
5am CDT Aug 26, 2026-6pm CDT Sep 1, 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