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NWS Survey Teams Actively Assessing June 11th, 2026 Storm Damage
Changes to River Forecast Services at Multiple Locations in Central Iowa, effective 6/22/2026

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

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

Partly Cloudy

77°F

25°C

Humidity	30%
Wind Speed	W 13 G 16 mph
Barometer	29.93 in
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	15 Jun 3:15 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Poweshiek County

Tonight

Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 50s. Southwest winds 5 to 10 mph. Gusts up to 25 mph after midnight. Chance of rain 20 percent.

Tuesday

Sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Tuesday Night

Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 50s. West winds 5 to 10 mph, becoming south after midnight. Chance of rain 40 percent.

Wednesday

A chance of thunderstorms. Showers. Highs in the lower 80s. South winds 10 to 15 mph, becoming southwest in the afternoon. Gusts up to 30 mph. Chance of rain near 100 percent.

Wednesday Night

Mostly clear. Lows in the mid 50s. West winds 15 to 20 mph with gusts up to 30 mph.

Thursday

Mostly sunny. Highs in the mid 70s.

Thursday Night

Mostly clear. Lows in the lower 50s.

Juneteenth

Sunny. Highs in the upper 70s.

Friday Night

Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 30 percent.

Saturday

Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 30 percent.

Saturday Night

Mostly cloudy with a chance of thunderstorms. A chance of showers. Lows around 60. Chance of rain 50 percent.

Sunday

Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.

Sunday Night

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows around 60. Chance of rain 40 percent.

Monday

Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 70s. Chance of rain 20 percent.