Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

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

Partly Cloudy

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 29 Aug 5:15 am CDT
Detailed forecast for

Poweshiek County

Today
Mostly sunny early, then becoming partly sunny. A slight chance of showers this afternoon. Highs around 80. Southeast winds around 5 mph. Chance of rain 20 percent.
Tonight
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 50s. Southeast winds around 5 mph.
Saturday
Partly sunny. Highs around 80. Southeast winds around 5 mph.
Saturday Night
Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows around 60. East winds around 5 mph. Chance of rain 20 percent.
Sunday
Mostly cloudy. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent.
Sunday Night
Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent.
Labor Day
Partly sunny. A slight chance of showers in the morning. Highs in the lower 70s. Chance of rain 20 percent.
Monday Night
Partly cloudy. Lows in the mid 50s.
Tuesday
Mostly sunny. Highs in the mid 70s.
Tuesday Night
Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 30 percent.
Wednesday
Partly sunny. A chance of showers, mainly in the morning. Highs around 70. Chance of rain 30 percent.
Wednesday Night
Partly cloudy in the evening, then becoming mostly clear. A 20 percent chance of showers. Lows in the mid 40s.
Thursday
Mostly sunny. Highs in the mid 60s.



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431 AM CDT Fri Aug 29 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database