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Heavy Rainfall in the Southern Plains, Carolinas and Florida; Heat in the West and Northeast

Heavy to excessive rainfall over parts of the southern Plains, Florida Panhandle, and coastal Carolinas may bring areas of flooding today. Hot to extremely hot temperatures are in place through early this week across much of the western U.S. and northern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

76°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 11 Aug 2:35 pm CDT
Extended Forecast for

Montezuma IA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 82. South wind around 6 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Light south wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 61. Light north wind. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 82. South wind around 6 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Light south wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 61. Light north wind. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 80. Calm wind.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
Last Update:
1:09 pm CDT Aug 11, 2025
Forecast Valid:
2pm CDT Aug 11, 2025-6pm CDT Aug 17, 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