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.

Fair

61°F

16°C

Humidity 44%
Wind Speed SE 14 mph
Barometer 30.07 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 14 May 8:35 am CDT
Extended Forecast for

Montezuma IA

  • Today

    Today: Sunny, with a high near 78. Breezy, with a south wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 78 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 56. South southeast wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 10 percent chance of showers after 5pm. Partly sunny, then gradually becoming sunny, with a high near 87. South wind 6 to 9 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 60. South southeast wind around 6 mph becoming calm after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Breezy.

    High: 85 °F

    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Breezy.

    Low: 67 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Windy. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely and
    Windy

Detailed Forecast

Today
Sunny, with a high near 78. Breezy, with a south wind 9 to 16 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 56. South southeast wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
A 10 percent chance of showers after 5pm. Partly sunny, then gradually becoming sunny, with a high near 87. South wind 6 to 9 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 60. South southeast wind around 6 mph becoming calm after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Breezy.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Breezy.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Windy. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Windy. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 75.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 73.
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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:
8:47 am CDT May 14, 2026
Forecast Valid:
8am CDT May 14, 2026-6pm CDT May 20, 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