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 and Breezy

36°F

2°C

Humidity 85%
Wind Speed NW 23 mph
Barometer 29.85 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 11 Mar 6:35 am CDT
Extended Forecast for

Grinnell IA

  • Today

    Today: Rain and snow likely before noon, then a slight chance of snow between noon and 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 42. Windy, with a north northwest wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Windy.
    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Tonight

    Tonight: Clear, with a low around 26. West wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 26 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 53. Windy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 53 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Windy

  • Thursday Night

    Thursday Night: A chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. Windy, with a south southwest wind 25 to 30 mph becoming west after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 34 °F

    Windy. Chance
    Rain then
    Chance
    Rain/Snow

  • Friday

    Friday: Partly sunny, with a high near 45. Windy, with a northwest wind 17 to 24 mph, with gusts as high as 39 mph.

    High: 45 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Rain and snow likely, mainly after 1am. Cloudy, with a low around 32. Breezy. Chance of precipitation is 60%.

    Low: 32 °F

    Breezy.
    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow likely, mainly before 1pm. Cloudy, with a high near 39. Windy. Chance of precipitation is 70%.

    High: 39 °F

    Rain/Snow
    Likely and
    Windy

Detailed Forecast

Today
Rain and snow likely before noon, then a slight chance of snow between noon and 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 42. Windy, with a north northwest wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tonight
Clear, with a low around 26. West wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday
Increasing clouds, with a high near 53. Windy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph.
Thursday Night
A chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. Windy, with a south southwest wind 25 to 30 mph becoming west after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 45. Windy, with a northwest wind 17 to 24 mph, with gusts as high as 39 mph.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 49.
Saturday Night
Rain and snow likely, mainly after 1am. Cloudy, with a low around 32. Breezy. Chance of precipitation is 60%.
Sunday
Rain and snow likely, mainly before 1pm. Cloudy, with a high near 39. Windy. Chance of precipitation is 70%.
Sunday Night
Mostly cloudy, with a low around 11. Windy.
Monday
Mostly sunny, with a high near 26. Windy.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Mostly cloudy, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.72°W
Last Update:
5:53 am CDT Mar 11, 2026
Forecast Valid:
6am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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