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

38°F

3°C

Humidity 28%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 29 Mar 12:55 am CDT
Extended Forecast for

Montezuma IA

  • Overnight

    Overnight: Partly cloudy, with a low around 37. South wind around 9 mph, with gusts as high as 18 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. South wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. South wind 6 to 9 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Breezy, with a south southwest wind 6 to 16 mph, with gusts as high as 24 mph.

    High: 82 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers. Partly cloudy, with a low around 57. Breezy, with a south southwest wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 57 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 71. Breezy. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday

    Wednesday: A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. South wind around 9 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 68. South wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 47. South wind 6 to 9 mph.
Monday
Sunny, with a high near 82. Breezy, with a south southwest wind 6 to 16 mph, with gusts as high as 24 mph.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57. Breezy, with a south southwest wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 71. Breezy. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 33. Breezy.
Wednesday
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Thursday
A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 46. Breezy. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 60.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Saturday
A 50 percent chance of rain. Partly sunny, with a high near 57. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
Last Update:
10:56 pm CDT Mar 28, 2026
Forecast Valid:
1am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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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