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

66°F

19°C

Humidity 64%
Wind Speed SW 14 mph
Barometer 29.72 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 31 Mar 8:15 am CDT
Extended Forecast for

5 Miles NNE Montezuma IA

  • Today

    Today: A slight chance of showers and thunderstorms between 10am and 4pm. Mostly cloudy, with a high near 66. Windy, with a south southwest wind 13 to 21 mph becoming north in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    T-storms and
    Windy

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 39. Breezy, with a north northeast wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 47. Breezy, with an east wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 47 °F

    Breezy.
    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 36. Breezy, with an east wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 36 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain before 1pm, then rain likely and possibly a thunderstorm between 1pm and 4pm, then rain likely after 4pm. High near 59. Breezy, with an east wind 13 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 52. Windy.

    High: 52 °F

    Chance Rain
    and Windy

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 10am and 4pm. Mostly cloudy, with a high near 66. Windy, with a south southwest wind 13 to 21 mph becoming north in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Tonight
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 39. Breezy, with a north northeast wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 47. Breezy, with an east wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain and possibly a thunderstorm. Low around 36. Breezy, with an east wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Rain before 1pm, then rain likely and possibly a thunderstorm between 1pm and 4pm, then rain likely after 4pm. High near 59. Breezy, with an east wind 13 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Partly cloudy, with a low around 36.
Friday
A 40 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 66.
Friday Night
Rain and possibly a thunderstorm. Low around 41. Chance of precipitation is 80%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 52. Windy.
Saturday Night
Mostly cloudy, with a low around 30. Blustery.
Sunday
Mostly sunny, with a high near 50. Breezy.
Sunday Night
Mostly clear, with a low around 28.
Monday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Montezuma IA
 41.66°N 92.49°W
Last Update:
6:44 am CDT Mar 31, 2026
Forecast Valid:
8am CDT Mar 31, 2026-6pm CDT Apr 6, 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