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

36°F

2°C

Humidity 50%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Apr 2:15 am CDT
Extended Forecast for

Grinnell Regional Airport IA

Freeze Warning until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Overnight

    Low: 30 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Breezy, with a light east southeast wind becoming south 12 to 17 mph in the morning. Winds could gust as high as 23 mph.

    High: 63 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. South wind around 14 mph, with gusts as high as 23 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 79. Southwest wind 8 to 14 mph, with gusts as high as 20 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 74. Windy.

    High: 74 °F

    Windy. Partly
    Sunny then
    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 30. Calm wind.
Monday
Sunny, with a high near 63. Breezy, with a light east southeast wind becoming south 12 to 17 mph in the morning. Winds could gust as high as 23 mph.
Monday Night
Increasing clouds, with a low around 51. South wind around 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 79. Southwest wind 8 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 52. Calm wind.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 74. Windy.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Windy. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
1:27 am CDT Apr 20, 2026
Forecast Valid:
2am CDT Apr 20, 2026-6pm CDT Apr 26, 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