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

28°F

-2°C

Humidity 88%
Wind Speed NW 20 G 25 mph
Barometer 30.17 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 9 Nov 2:55 am CST
Extended Forecast for

Sully IA

  • Overnight

    Overnight: Partly cloudy, with a low around 24. Blustery, with a north northwest wind around 17 mph, with gusts as high as 26 mph.

    Low: 24 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: A chance of flurries after 3pm. Partly sunny, with a high near 31. Windy, with a northwest wind 15 to 22 mph, with gusts as high as 28 mph.

    High: 31 °F

    Chance
    Flurries and
    Windy

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Mostly cloudy, then gradually becoming clear, with a low around 21. North northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 21 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 36. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 36 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. Light and variable wind becoming south southwest 8 to 13 mph after midnight. Winds could gust as high as 22 mph.

    Low: 24 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 24. Blustery, with a north northwest wind around 17 mph, with gusts as high as 26 mph.
Sunday
A chance of flurries after 3pm. Partly sunny, with a high near 31. Windy, with a northwest wind 15 to 22 mph, with gusts as high as 28 mph.
Sunday Night
A chance of flurries before midnight. Mostly cloudy, then gradually becoming clear, with a low around 21. North northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 36. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 24. Light and variable wind becoming south southwest 8 to 13 mph after midnight. Winds could gust as high as 22 mph.
Veterans Day
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 39.
Friday
Mostly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 70. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sully IA
 41.58°N 92.84°W
Last Update:
2:47 am CST Nov 9, 2025
Forecast Valid:
3am CST Nov 9, 2025-6pm CST Nov 15, 2025
 
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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