Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71° N Lon: 92.73° W Elev: 1007 ft.

Fair

74°F

23°C

Humidity 47%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 29 Sep 7:15 pm CDT
Detailed forecast for

Poweshiek County

Tonight
Mostly clear this evening, then becoming partly cloudy. Lows around 60. Southeast winds around 5 mph.
Tuesday
Mostly sunny. Highs in the mid 80s. Southeast winds around 5 mph.
Tuesday Night
Mostly cloudy. Lows around 60. East winds around 5 mph.
Wednesday
Partly sunny. Highs in the mid 80s. Southeast winds around 5 mph.
Wednesday Night
Partly cloudy. Lows in the upper 50s. Southeast winds around 5 mph.
Thursday
Sunny. Highs in the upper 80s.
Thursday Night
Clear. Lows in the lower 60s.
Friday
Sunny. Highs in the upper 80s.
Friday Night
Mostly clear. Lows in the mid 60s.
Saturday
Mostly sunny with a 20 percent chance of showers. Highs in the mid 80s.
Saturday Night
Partly cloudy with a 20 percent chance of showers. Lows in the lower 60s.
Sunday
Mostly sunny with a 20 percent chance of showers. Highs in the mid 80s.
Sunday Night
Partly cloudy with a 20 percent chance of showers. Lows around 60.
Monday
Mostly sunny with a 20 percent chance of showers. Highs in the upper 70s.



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618 PM CDT Mon Sep 29 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database