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 and Breezy

77°F

25°C

Humidity 24%
Wind Speed SE 24 G 29 mph
Barometer 29.88 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 14 May 4:35 pm CDT
Extended Forecast for

Montezuma IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. Breezy, with a south wind around 16 mph, with gusts as high as 26 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 56. Breezy, with a south southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 86. South wind around 10 mph, with gusts as high as 18 mph.

    High: 86 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 61. South southeast wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming south southeast 5 to 7 mph in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Windy.

    High: 88 °F

    Chance
    T-storms and
    Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. Windy.

    Low: 68 °F

    Mostly Clear
    and Windy
    then Chance
    T-storms and
    Breezy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Windy.

    High: 88 °F

    Chance
    T-storms and
    Windy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. Breezy, with a south wind around 16 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 56. Breezy, with a south southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
Partly sunny, then gradually becoming sunny, with a high near 86. South wind around 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 61. South southeast wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming south southeast 5 to 7 mph in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Windy.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. Windy.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Windy.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 62. Windy. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 79. Breezy.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 71.
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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:
2:06 pm CDT May 14, 2026
Forecast Valid:
4pm 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