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National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Light Snow

25°F

-4°C

Humidity	89%
Wind Speed	NW 18 mph
Barometer	30.41 in
Dewpoint	22°F (-6°C)
Visibility	7.00 mi
Wind Chill	11°F (-12°C)
Last update	9 Nov 8:15 pm CST

More Information:

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

Extended Forecast for

6 Miles WNW Hartwick IA

Tonight
Low: 21 °F
Slight Chance
Flurries
Monday
High: 36 °F
Sunny
Monday Night
Low: 23 °F
Increasing
Clouds
Veterans Day
High: 52 °F
Decreasing
Clouds
Tuesday Night
Low: 34 °F
Mostly Clear
Wednesday
High: 54 °F
Sunny
Wednesday Night
Low: 31 °F
Partly Cloudy
Thursday
High: 58 °F
Mostly Sunny
Thursday Night
Low: 37 °F
Partly Cloudy

Detailed Forecast

Tonight

A slight chance of flurries before 3am. Partly cloudy, with a low around 21. North northwest wind 10 to 13 mph, with gusts as high as 22 mph.

Monday

Sunny, with a high near 36. North northwest wind 7 to 11 mph.

Monday Night

Increasing clouds, with a low around 23. Light and variable wind becoming south southwest 6 to 11 mph after midnight. Winds could gust as high as 21 mph.

Veterans Day

Mostly cloudy, then gradually becoming sunny, with a high near 52. South southwest wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

Tuesday Night

Mostly clear, with a low around 34. West wind 7 to 9 mph.

Wednesday

Sunny, with a high near 54.

Wednesday Night

Partly cloudy, with a low around 31.

Thursday

Mostly sunny, with a high near 58.

Thursday Night

Partly cloudy, with a low around 37.

Friday

Partly sunny, with a high near 64.