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

51°F

11°C

Humidity 17%
Wind Speed NW 12 mph
Barometer 30.23 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 19 Apr 6:55 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

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

  • Tonight

    Tonight: Clear, with a low around 29. North northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 29 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 61. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51. West northwest wind around 5 mph becoming light and variable in the evening.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

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

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy. Chance of precipitation is 50%.

    High: 75 °F

    Windy. Slight
    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 48. Breezy. Chance of precipitation is 80%.

    Low: 48 °F

    Showers and
    Breezy

Detailed Forecast

Tonight
Clear, with a low around 29. North northwest wind 5 to 9 mph becoming calm in the evening.
Monday
Sunny, with a high near 61. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 49. South wind around 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 79. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 51. West northwest wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy. Chance of precipitation is 50%.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 48. Breezy. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
5:37 pm CDT Apr 19, 2026
Forecast Valid:
7pm CDT Apr 19, 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