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

42°F

6°C

Humidity 85%
Wind Speed N 18 G 24 mph
Barometer 29.76 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 11 Mar 1:55 am CDT
Extended Forecast for

Grinnell Regional Airport IA

  • Overnight

    Overnight: A 10 percent chance of rain after 4am. Cloudy, with a low around 34. North wind around 15 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain, mixing with snow after 9am, then gradually ending. Cloudy through mid morning, then gradual clearing, with a high near 43. Windy, with a north northwest wind 18 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 43 °F

    Windy. Chance
    Rain/Snow
    then
    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Clear, with a low around 27. Northwest wind 9 to 14 mph becoming light west in the evening. Winds could gust as high as 21 mph.

    Low: 27 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 54. Windy, with a light west southwest wind becoming south southwest 19 to 24 mph in the morning. Winds could gust as high as 36 mph.

    High: 54 °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 24 to 26 mph becoming west after midnight. Winds could gust as high as 41 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 46. Windy.

    High: 46 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 51.

    High: 51 °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

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

Overnight
A 10 percent chance of rain after 4am. Cloudy, with a low around 34. North wind around 15 mph, with gusts as high as 22 mph.
Wednesday
A chance of rain, mixing with snow after 9am, then gradually ending. Cloudy through mid morning, then gradual clearing, with a high near 43. Windy, with a north northwest wind 18 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Clear, with a low around 27. Northwest wind 9 to 14 mph becoming light west in the evening. Winds could gust as high as 21 mph.
Thursday
Increasing clouds, with a high near 54. Windy, with a light west southwest wind becoming south southwest 19 to 24 mph in the morning. 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 24 to 26 mph becoming west after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 46. Windy.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 31.
Saturday
Mostly cloudy, with a high near 51.
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 12. Windy.
Monday
Mostly sunny, with a high near 26. Blustery.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Mostly cloudy, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
1:27 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation