Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

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

Fair

73°F

23°C

Humidity	83%
Wind Speed	Calm
Barometer	29.97 in
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	4 Jul 8:55 pm CDT

More Information:

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

Detailed forecast for

Poweshiek County

Tonight

Mostly cloudy. A slight chance of showers and thunderstorms early, then a chance of showers and thunderstorms this evening. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Northwest winds around 5 mph early, becoming light and variable. Chance of rain 40 percent.

Sunday

Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. North winds around 5 mph. Chance of rain 40 percent.

Sunday Night

Partly cloudy in the evening, then clearing. Humid with lows in the lower 60s. Northeast winds around 5 mph.

Monday

Sunny with highs in the mid 80s. East winds around 5 mph.

Monday Night

Mostly clear. Humid with lows in the lower 60s. East winds around 5 mph in the evening, becoming light and variable.

Tuesday

Sunny. Highs in the upper 80s.

Tuesday Night

Mostly clear. Lows in the mid 60s.

Wednesday

Mostly sunny. Highs in the upper 80s.

Wednesday Night

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent.

Thursday

Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.

Thursday Night

Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 50 percent.

Friday

Mostly sunny. Highs in the mid 80s.

Friday Night

Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 20 percent.

Saturday

Mostly sunny. Highs in the upper 80s.