National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

30°F

-1°C

Humidity 66%
Wind Speed SW 10 mph
Barometer 30.41 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 11 Jan 3:15 pm CST
Extended Forecast for

Lynnville IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 34. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 34 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 28. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 46. West wind around 7 mph.

    High: 46 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 33. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Breezy, with a west northwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 53 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Windy.

    Low: 27 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31. Windy.

    High: 31 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Blustery.

    Low: 15 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 34. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 28. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 46. West wind around 7 mph.
Monday Night
Increasing clouds, with a low around 33. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 53. Breezy, with a west northwest wind 11 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Windy.
Wednesday
Partly sunny, with a high near 31. Windy.
Wednesday Night
Mostly clear, with a low around 15. Blustery.
Thursday
Partly sunny, with a high near 31.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 26.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 36. Breezy.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lynnville IA
 41.58°N 92.81°W
Last Update:
3:16 pm CST Jan 11, 2026
Forecast Valid:
3pm CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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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