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.

Mostly Cloudy

8°F

-13°C

Humidity 73%
Wind Speed NW 7 mph
Barometer 30.61 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 22 Feb 9:55 pm CST
Extended Forecast for

Lynnville IA

  • Tonight

    Tonight: Partly cloudy, with a low around 4. Wind chill values as low as -5. North northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 20. Wind chill values as low as -5. North northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 20 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a temperature falling to near 12 by 9pm, then rising to around 19 during the remainder of the night. Wind chill values as low as 5. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 12 °F⇑

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43. Wind chill values as low as 10. South wind 9 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 43 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. Northwest wind 5 to 8 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow after noon. Mostly sunny, with a high near 36. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 36 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.

    Low: 19 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 4. Wind chill values as low as -5. North northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 20. Wind chill values as low as -5. North northwest wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a temperature falling to near 12 by 9pm, then rising to around 19 during the remainder of the night. Wind chill values as low as 5. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 43. Wind chill values as low as 10. South wind 9 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 20. Northwest wind 5 to 8 mph.
Wednesday
A chance of rain and snow after noon. Mostly sunny, with a high near 36. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 29.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Partly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lynnville IA
 41.58°N 92.78°W
Last Update:
7:37 pm CST Feb 22, 2026
Forecast Valid:
10pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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