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.

Overcast

45°F

7°C

Humidity 36%
Wind Speed NW 13 mph
Barometer 30.35 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 6 Apr 5:55 pm CDT
Extended Forecast for

Grinnell IA

  • Tonight

    Tonight: A slight chance of rain and snow showers before 4am, then a slight chance of snow showers after 5am. Mostly cloudy, with a low around 27. North northwest wind 7 to 10 mph becoming northeast after midnight. Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Showers then
    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow showers before 3pm, then a chance of rain showers. Mostly cloudy, with a high near 41. Southeast wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 41 °F

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a steady temperature around 38. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 68. Windy, with a south wind 20 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 45. Breezy, with a south southwest wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 62. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers. Partly sunny, with a high near 59.

    High: 59 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain and snow showers before 4am, then a slight chance of snow showers after 5am. Mostly cloudy, with a low around 27. North northwest wind 7 to 10 mph becoming northeast after midnight. Chance of precipitation is 20%.
Tuesday
A chance of snow showers before 3pm, then a chance of rain showers. Mostly cloudy, with a high near 41. Southeast wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a steady temperature around 38. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 68. Windy, with a south wind 20 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 45. Breezy, with a south southwest wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 62. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 61.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
Showers likely. Mostly cloudy, with a high near 72. Windy. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 58. Breezy. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 75. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.69°W
Last Update:
4:47 pm CDT Apr 6, 2026
Forecast Valid:
6pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation