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

48°F

9°C

Humidity 72%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 21 Mar 7:15 am CDT
Extended Forecast for

2 Miles NE Sully IA

  • Today

    Today: Sunny, with a high near 86. Breezy, with a south southeast wind 6 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 86 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 50. South wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a steady temperature around 53. Windy, with a north wind 20 to 22 mph, with gusts as high as 32 mph.

    High: 53 °F

    Partly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. North wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 53. Light and variable wind becoming east around 6 mph in the morning.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 86. Breezy, with a south southeast wind 6 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Increasing clouds, with a low around 50. South wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a steady temperature around 53. Windy, with a north wind 20 to 22 mph, with gusts as high as 32 mph.
Sunday Night
Mostly clear, with a low around 31. North wind 5 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 53. Light and variable wind becoming east around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42.
Wednesday
Mostly cloudy, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 66. Breezy.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Sully IA
 41.6°N 92.81°W
Last Update:
5:43 am CDT Mar 21, 2026
Forecast Valid:
7am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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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