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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

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

14°F

-10°C

Humidity	84%
Wind Speed	NW 18 mph
Barometer	30.28 in (1026.6 mb)
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Wind Chill	-3°F (-19°C)
Last update	3 Dec 6:53 pm CST

More Information:

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

Extended Forecast for

4 Miles S Blakesburg IA

Tonight
Low: -6 °F
Partly Cloudy
Thursday
High: 15 °F
Sunny
Thursday Night
Low: 8 °F⇑
Mostly Clear
Friday
High: 31 °F
Partly Sunny
Friday Night
Low: 20 °F
Mostly Cloudy
Saturday
High: 30 °F
Mostly Cloudy
Saturday Night
Low: 13 °F
Chance Snow
Sunday
High: 22 °F
Mostly Cloudy
Sunday Night
Low: 0 °F
Mostly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around -6. Wind chill values as low as -15. North northwest wind 8 to 13 mph becoming light after midnight.

Thursday

Sunny, with a high near 15. Wind chill values as low as -10. Calm wind becoming south around 6 mph in the afternoon.

Thursday Night

Mostly clear, with a temperature rising to around 16 by 4am. Wind chill values as low as -5. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.

Friday

Partly sunny, with a high near 31. Wind chill values as low as 5. Southwest wind 6 to 9 mph.

Friday Night

Mostly cloudy, with a low around 20. West wind 3 to 6 mph.

Saturday

Mostly cloudy, with a high near 30.

Saturday Night

A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13.

Sunday

Mostly cloudy, with a high near 22.

Sunday Night

Mostly cloudy, with a low around 0.