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.

Overcast

31°F

-1°C

Humidity 90%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 10 Jan 1:15 am CST
Extended Forecast for

Montezuma IA

  • Overnight

    Overnight: A chance of snow before 4am, then a chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Cloudy, with a low around 30. West northwest wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow between noon and 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 34. Breezy, with a west northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 34 °F

    Partly Sunny
    then Chance
    Snow and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20. Wind chill values as low as 5. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 20 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Sunny, with a high near 31. Wind chill values as low as 10. Northwest wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 31 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow before 4am, then a chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Cloudy, with a low around 30. West northwest wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of snow between noon and 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 34. Breezy, with a west northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 20. Wind chill values as low as 5. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 31. Wind chill values as low as 10. Northwest wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly clear, with a low around 25. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly cloudy, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.55°W
Last Update:
10:27 pm CST Jan 9, 2026
Forecast Valid:
1am CST Jan 10, 2026-6pm CST Jan 16, 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