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.

Partly Cloudy

62°F

17°C

Humidity 85%
Wind Speed SW 9 mph
Barometer 30.01 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Jun 9:55 pm CDT
Extended Forecast for

Chelsea IA

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Light northwest wind.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 56. Calm wind becoming east around 5 mph after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 4pm, then showers likely. Some of the storms could produce heavy rainfall. High near 71. East wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 71 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53. Northeast wind 7 to 14 mph, with gusts as high as 22 mph. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West southwest wind 5 to 7 mph becoming calm after midnight.
Saturday
Sunny, with a high near 81. Light northwest wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 56. Calm wind becoming east around 5 mph after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm before 4pm, then showers likely. Some of the storms could produce heavy rainfall. High near 71. East wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 53. Northeast wind 7 to 14 mph, with gusts as high as 22 mph. New precipitation amounts between a quarter and half of an inch possible.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chelsea IA
 41.92°N 92.39°W
Last Update:
7:47 pm CDT Jun 19, 2026
Forecast Valid:
10pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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