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

61°F

16°C

Humidity 74%
Wind Speed SW 12 mph
Barometer 29.93 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 22 Apr 4:35 am CDT
Extended Forecast for

3 Miles NNW Hartwick IA

  • Today

    Today: A chance of sprinkles between 2pm and 3pm. Mostly sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 80 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 53. Breezy, with a south wind 9 to 16 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    T-storms and
    Breezy

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Sunny, with a high near 67. Northwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 69. Breezy.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers and
    Breezy

Detailed Forecast

Today
A chance of sprinkles between 2pm and 3pm. Mostly sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 53. Breezy, with a south wind 9 to 16 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Sunny, with a high near 67. Northwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 69. Breezy.
Sunday Night
Showers likely. Mostly cloudy, with a low around 53. Windy. Chance of precipitation is 70%.
Monday
Showers likely. Mostly cloudy, with a high near 67. Breezy. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41. Breezy.
Tuesday
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
2:46 am CDT Apr 22, 2026
Forecast Valid:
4am CDT Apr 22, 2026-6pm CDT Apr 28, 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