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

87°F

31°C

Humidity 63%
Wind Speed S 13 G 18 mph
Barometer 29.86 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 26 Jun 5:35 pm CDT
Extended Forecast for

Montezuma IA

Severe T-storm Watch June 26, 05:55pm until June 26, 09:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch June 26, 05:55pm until June 26, 09:00pm

    NOW until 9:00pm Thu

    Severe T-storm Watch

  • This Afternoon

    High: 85 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am. Some of the storms could be severe and produce heavy rainfall. Cloudy, with a low around 68. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Severe
    Thunderstorms
    then Chance
    T-storms

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 83. Northwest wind around 6 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. South wind 3 to 6 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a steady temperature around 85. South southwest wind around 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 2am. Some of the storms could be severe and produce heavy rainfall. Cloudy, with a low around 68. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 83. Northwest wind around 6 mph.
Friday Night
Mostly clear, with a low around 67. Light and variable wind.
Saturday
Sunny, with a high near 91. South wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 71.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 87.
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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:
5:51 pm CDT Jun 26, 2025
Forecast Valid:
5pm CDT Jun 26, 2025-6pm CDT Jul 3, 2025
 
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