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

33°F

1°C

Humidity 56%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 19 Apr 3:55 am CDT
Extended Forecast for

Grinnell Regional Airport IA

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Overnight

    Overnight: Mostly clear, with a low around 32. Light west southwest wind.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 54. West southwest wind 6 to 15 mph becoming north northwest in the morning. Winds could gust as high as 23 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost after 4am. Otherwise, clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Clear then
    Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 62. Breezy, with a light southeast wind becoming south southeast 11 to 16 mph in the morning. Winds could gust as high as 22 mph.

    High: 62 °F

    Frost then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 32. Light west southwest wind.
Sunday
Mostly sunny, with a high near 54. West southwest wind 6 to 15 mph becoming north northwest in the morning. Winds could gust as high as 23 mph.
Sunday Night
Widespread frost after 4am. Otherwise, clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 62. Breezy, with a light southeast wind becoming south southeast 11 to 16 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 49. South wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Clear, with a low around 51.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy.
Thursday Night
Showers and possibly a thunderstorm. Low around 48. Breezy. Chance of precipitation is 80%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
3:06 am CDT Apr 19, 2026
Forecast Valid:
3am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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