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

57°F

14°C

Humidity 93%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Jun 1:35 am CDT
Extended Forecast for

Montezuma IA

  • Overnight

    Overnight: Clear, with a low around 54. Northwest wind 3 to 5 mph.

    Low: 54 °F

    Clear

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds, with a high near 79. Calm wind becoming west around 6 mph in the afternoon.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 58. West wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    Showers

  • Saturday

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

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. East wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 71. Breezy. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 71 °F

    Heavy Rain
    and Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Monday Night

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

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 54. Northwest wind 3 to 5 mph.
Juneteenth
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds, with a high near 79. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 58. West wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 80. Calm wind.
Saturday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. East wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 71. Breezy. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
Last Update:
1:27 am CDT Jun 19, 2026
Forecast Valid:
1am CDT Jun 19, 2026-6pm CDT Jun 25, 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