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

N/A

Humidity NA
Wind Speed NE 5 mph
Barometer 29.91 in
Dewpoint N/A
Visibility 10.00 mi
Last update 28 Jul 4:15 pm CDT
Extended Forecast for

3 Miles ENE Chelsea IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 85. North wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy smoke between 8pm and 2am. Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 88. South southeast wind 3 to 6 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. South southeast wind 3 to 5 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Light south wind increasing to 5 to 9 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 85. North wind around 5 mph.
Tonight
Patchy smoke between 8pm and 2am. Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88. South southeast wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 65. South southeast wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 86. Light south wind increasing to 5 to 9 mph in the morning.
Thursday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Saturday
Partly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 61.
Monday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Chelsea IA
 41.92°N 92.33°W
Last Update:
4:12 pm CDT Jul 28, 2026
Forecast Valid:
4pm CDT Jul 28, 2026-6pm CDT Aug 3, 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