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

77°F

25°C

Humidity 39%
Wind Speed W 7 mph
Barometer 30.00 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Jun 4:35 pm CDT
Extended Forecast for

3 Miles SSW Gilman IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 79. West northwest wind around 7 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers, mainly after 3am. Increasing clouds, with a low around 56. Light and variable wind becoming east southeast around 6 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms. High near 66. Breezy, with an east wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 66 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 10 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a north northeast wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.

    Low: 53 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Northeast wind 6 to 8 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 79. West northwest wind around 7 mph.
Tonight
A 50 percent chance of showers, mainly after 3am. Increasing clouds, with a low around 56. Light and variable wind becoming east southeast around 6 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and thunderstorms. High near 66. Breezy, with an east wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
A 10 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a north northeast wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.
Monday
Mostly sunny, with a high near 76. Northeast wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Gilman IA
 41.84°N 92.8°W
Last Update:
2:44 pm CDT Jun 20, 2026
Forecast Valid:
4pm CDT Jun 20, 2026-6pm CDT Jun 26, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation