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

6 Miles SSW Chelsea IA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 84. Breezy, with a light and variable wind becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 25 mph.

    High: 84 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 47. South southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a steady temperature around 51. Windy, with a north wind around 21 mph, with gusts as high as 31 mph.

    High: 51 °F

    Partly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. North wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52. Light and variable wind becoming northeast around 5 mph in the morning.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 84. Breezy, with a light and variable wind becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Increasing clouds, with a low around 47. South southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a steady temperature around 51. Windy, with a north wind around 21 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 29. North wind 5 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 52. Light and variable wind becoming northeast around 5 mph in the morning.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 64. Breezy.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Chelsea IA
 41.83°N 92.42°W
Last Update:
5:43 am CDT Mar 21, 2026
Forecast Valid:
7am CDT Mar 21, 2026-6pm CDT Mar 27, 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