National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

42°F

6°C

Humidity 60%
Wind Speed N 15 G 24 mph
Barometer 30.14 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 26 Mar 9:55 pm CDT
Extended Forecast for

Grinnell IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Windy, with a north northeast wind 15 to 21 mph, with gusts as high as 29 mph.

    Low: 30 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Sunny, with a high near 48. Breezy, with a north northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 48 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Clear, with a low around 22. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 22 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 56. Windy, with a light south southeast wind becoming south 17 to 22 mph in the morning. Winds could gust as high as 29 mph.

    High: 56 °F

    Sunny then
    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. Windy, with a north northeast wind 15 to 21 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 48. Breezy, with a north northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Friday Night
Clear, with a low around 22. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 56. Windy, with a light south southeast wind becoming south 17 to 22 mph in the morning. Winds could gust as high as 29 mph.
Saturday Night
Partly cloudy, with a low around 39. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 47.
Monday
Mostly sunny, with a high near 76.
Monday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 77. Breezy.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 46. Breezy.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 63. Breezy.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39. Breezy.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.69°W
Last Update:
8:02 pm CDT Mar 26, 2026
Forecast Valid:
10pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation