Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

65°F

18°C

Humidity 99%
Wind Speed SE 6 mph
Barometer 29.78 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 1 Oct 4:55 am CDT
Extended Forecast for

Chelsea IA

Flood Watch October 1, 05:19am until October 2, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch October 1, 05:19am until October 2, 01:00am

    NOW until 1:00am Fri

    Flood Watch

  • Overnight

    Low: 67 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 9am, then a chance of showers.  Patchy fog before 8am. High near 67. North wind 7 to 11 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 49. North wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 62. North northeast wind 6 to 8 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 43. Light and variable wind.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Patchy fog. Steady temperature around 67. East southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 9am, then a chance of showers. Patchy fog before 8am. High near 67. North wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 49. North wind 7 to 9 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 62. North northeast wind 6 to 8 mph.
Friday Night
Clear, with a low around 43. Light and variable wind.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 67.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 46.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea IA
 41.92°N 92.39°W
5:06 am CDT Oct 1, 2026
5am CDT Oct 1, 2026-6pm CDT Oct 7, 2026
 
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Additional Resources

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