National Weather Service

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Heat Advisory for portions of central Iowa and all of southern Iowa Wednesday afternoon through Friday afternoon

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

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

Fair

76°F

24°C

Humidity	79%
Wind Speed	S 8 mph
Barometer	29.90 in
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	3 Sep 2:15 am CDT

More Information:

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

Detailed forecast for

Poweshiek County

Rest Of Tonight

Mostly clear. Near steady temperature in the mid 70s. South winds 5 to 10 mph.

Thursday

Sunny with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 101.

Thursday Night

Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph.

Friday

Sunny with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 102.

Friday Night

Mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph. Heat index values up to 101 early in the evening.

Saturday

Sunny. Highs in the lower 90s. Heat index values up to 100.

Saturday Night

Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent.

Sunday

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent.

Sunday Night

Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.

Labor Day

Mostly sunny. Highs in the upper 80s.

Monday Night

Partly cloudy. Lows in the upper 60s.

Tuesday

Mostly sunny with a 20 percent chance of showers. Highs in the lower 90s.

Tuesday Night

Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows around 70. Chance of rain 50 percent.

Wednesday

Mostly sunny. A chance of showers, mainly in the morning. Highs in the upper 80s. Chance of rain 50 percent.