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

59°F

15°C

Humidity 43%
Wind Speed SW 16 mph
Barometer 29.67 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 9 Mar 10:55 am CDT
Extended Forecast for

Chelsea IA

  • Today

    Today: Sunny, with a high near 69. West southwest wind 7 to 10 mph becoming south southeast in the afternoon.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 42. Light east northeast wind.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. Northeast wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 36. North northeast wind 10 to 13 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 46. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 52. Breezy.

    High: 52 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. Breezy.

    Low: 36 °F

    Chance Rain
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 49. Breezy.

    High: 49 °F

    Partly Sunny
    and Breezy
    then Partly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 69. West southwest wind 7 to 10 mph becoming south southeast in the afternoon.
Tonight
Clear, with a low around 42. Light east northeast wind.
Tuesday
Mostly sunny, with a high near 65. Northeast wind 5 to 10 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36. North northeast wind 10 to 13 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 46. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly clear, with a low around 25.
Thursday
Partly sunny, with a high near 52. Breezy.
Thursday Night
A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. Breezy.
Friday
Partly sunny, with a high near 49. Breezy.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Mostly cloudy, with a high near 50.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 47. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea IA
 41.92°N 92.39°W
Last Update:
9:44 am CDT Mar 9, 2026
Forecast Valid:
11am CDT Mar 9, 2026-6pm CDT Mar 15, 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