Current conditions at

Grinnell Municipal Airfield (KGGI)

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

Mostly Cloudy

43°F

6°C

Humidity 38%
Wind Speed Calm
Barometer 30.37 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 6 Apr 7:15 pm CDT
Detailed forecast for

Poweshiek County

Tonight
Mostly cloudy. A slight chance of rain showers this evening, then a slight chance of snow showers after midnight. Lows in the upper 20s. North winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation 20 percent.
Tuesday
Mostly cloudy. A slight chance of snow showers in the morning, then a chance of rain and snow showers in the afternoon. Highs in the lower 40s. East winds 10 to 15 mph. Chance of precipitation 40 percent.
Tuesday Night
Mostly cloudy. A chance of rain showers, mainly in the evening. Near steady temperature in the upper 30s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.
Wednesday
Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Breezy and not as cool with highs in the upper 60s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 40 percent.
Wednesday Night
A slight chance of thunderstorms. Showers likely, mainly in the evening. Lows in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight. Chance of rain 70 percent.
Thursday
Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 60 percent.
Thursday Night
Showers likely. A chance of thunderstorms, mainly in the evening. Lows in the lower 40s. Chance of rain 70 percent.
Friday
Partly sunny. A chance of showers, mainly in the morning. Highs around 60. Chance of rain 30 percent.
Friday Night
Partly cloudy with a 20 percent chance of showers. Lows in the lower 40s.
Saturday
Partly sunny in the morning, then becoming mostly cloudy. A 50 percent chance of showers. Highs in the mid 60s.
Saturday Night
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the mid 50s. Chance of rain 50 percent.
Sunday
Showers likely. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent.
Sunday Night
A slight chance of thunderstorms. Showers likely, mainly in the evening. Lows in the upper 50s. Chance of rain 70 percent.
Monday
Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.



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617 PM CDT Mon Apr 6 2026
 
 

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