National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

85°F

29°C

Humidity 27%
Wind Speed N 7 mph
Barometer 30.05 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Jun 5:35 pm CDT
Extended Forecast for

Sully IA

  • Tonight

    Tonight: Increasing clouds, with a low around 63. North northeast wind 5 to 7 mph becoming east after midnight.

    Low: 63 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A slight chance of showers between 11am and noon. Partly sunny, with a high near 86. Breezy, with a southeast wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers then
    Partly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 74. Breezy, with a south southeast wind 13 to 17 mph, with gusts as high as 25 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms and
    Breezy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 28 mph.

    High: 94 °F

    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 95. Windy.

    High: 95 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Breezy.

    Low: 76 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Windy.

    High: 93 °F

    Slight Chance
    T-storms and
    Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Breezy.

    Low: 71 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Increasing clouds, with a low around 63. North northeast wind 5 to 7 mph becoming east after midnight.
Saturday
A slight chance of showers between 11am and noon. Partly sunny, with a high near 86. Breezy, with a southeast wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 74. Breezy, with a south southeast wind 13 to 17 mph, with gusts as high as 25 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 75. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 95. Windy.
Monday Night
Mostly clear, with a low around 76. Breezy.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Windy.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Breezy.
Juneteenth
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Sully IA
 41.58°N 92.84°W
Last Update:
4:19 pm CDT Jun 14, 2024
Forecast Valid:
5pm CDT Jun 14, 2024-6pm CDT Jun 21, 2024
 
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Additional Resources

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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