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.

Partly Cloudy

33°F

1°C

Humidity 61%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 19 Apr 5:15 am CDT
Extended Forecast for

Montezuma IA

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: Mostly sunny, with a high near 54. West southwest wind 7 to 14 mph becoming north northwest in the morning. Winds could gust as high as 23 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 29. North wind 5 to 8 mph becoming light and variable after midnight.

    Low: 29 °F

    Clear

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 62. South southeast wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 62 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Windy.

    High: 76 °F

    Mostly Sunny
    and Breezy
    then Chance
    T-storms and
    Windy

Detailed Forecast

Today
Mostly sunny, with a high near 54. West southwest wind 7 to 14 mph becoming north northwest in the morning. Winds could gust as high as 23 mph.
Tonight
Clear, with a low around 29. North wind 5 to 8 mph becoming light and variable after midnight.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 62. South southeast wind 5 to 14 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 49. South wind around 11 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 78. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Windy.
Thursday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 49. Breezy. Chance of precipitation is 80%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
Last Update:
3:06 am CDT Apr 19, 2026
Forecast Valid:
5am CDT Apr 19, 2026-6pm CDT Apr 25, 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