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

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

37°F

3°C

Humidity 59%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 14 Feb 10:55 pm CST
Extended Forecast for

Guernsey IA

  • Tonight

    Tonight: Partly cloudy, with a low around 35. South southwest wind around 5 mph becoming west after midnight.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 39. Calm wind becoming south southwest 5 to 9 mph in the evening.

    Low: 39 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 63. South southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. South wind 3 to 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Breezy.

    High: 66 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain. Partly cloudy, with a low around 49. Breezy.

    Low: 49 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 64. Breezy.

    High: 64 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. South southwest wind around 5 mph becoming west after midnight.
Sunday
Sunny, with a high near 59. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 39. Calm wind becoming south southwest 5 to 9 mph in the evening.
Washington's Birthday
Mostly sunny, with a high near 63. South southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 42. South wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 66. Breezy.
Tuesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 49. Breezy.
Wednesday
Sunny, with a high near 64. Breezy.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guernsey IA
 41.64°N 92.34°W
Last Update:
10:26 pm CST Feb 14, 2026
Forecast Valid:
11pm CST Feb 14, 2026-6pm CST Feb 21, 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