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.

Mostly Cloudy

72°F

22°C

Humidity 88%
Wind Speed SE 7 mph
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Jun 10:35 pm CDT
Extended Forecast for

Gilman IA

Extreme Heat Warning June 28, 01:00pm until June 30, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 70. Southeast wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 92. Heat index values as high as 101. Windy, with a southeast wind 16 to 21 mph, with gusts as high as 29 mph.

    High: 92 °F

    Partly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. Breezy, with a south wind 11 to 17 mph, with gusts as high as 26 mph.

    Low: 74 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 106. Windy, with a south wind 13 to 22 mph, with gusts as high as 31 mph.

    High: 95 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. Windy, with a south wind 13 to 21 mph, with gusts as high as 31 mph.

    Low: 75 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: Sunny, with a high near 95. Breezy.

    High: 95 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 73. Breezy.

    Low: 73 °F

    Chance
    T-storms and
    Breezy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 70. Southeast wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 92. Heat index values as high as 101. Windy, with a southeast wind 16 to 21 mph, with gusts as high as 29 mph.
Sunday Night
Partly cloudy, with a low around 74. Breezy, with a south wind 11 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 106. Windy, with a south wind 13 to 22 mph, with gusts as high as 31 mph.
Monday Night
Partly cloudy, with a low around 75. Windy, with a south wind 13 to 21 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 95. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 73. Breezy.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 72.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 71.
Independence Day
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gilman IA
 41.88°N 92.77°W
Last Update:
10:27 pm CDT Jun 27, 2026
Forecast Valid:
10pm CDT Jun 27, 2026-6pm CDT Jul 4, 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