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

73°F

23°C

Humidity 50%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 12:35 pm CDT
Extended Forecast for

5 Miles NNE Montezuma IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. West northwest wind 6 to 8 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 57. Calm wind becoming east southeast around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers after 4pm. High near 69. Breezy, with an east wind 8 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 69 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers between 1am and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a northeast wind 8 to 18 mph, with gusts as high as 28 mph.

    Low: 53 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 77. Northeast wind around 7 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. West northwest wind 6 to 8 mph.
Tonight
A 40 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 57. Calm wind becoming east southeast around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers after 4pm. High near 69. Breezy, with an east wind 8 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
A 20 percent chance of showers between 1am and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a northeast wind 8 to 18 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 77. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 79.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 80.
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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:
12:36 pm CDT Jun 20, 2026
Forecast Valid:
12pm CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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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