National Weather Service

News Headlines

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

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Partly Cloudy

73°F

23°C

Humidity	83%
Wind Speed	S 6 mph
Barometer	29.78 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	22 Sep 7:15 pm CDT

More Information:

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

Extended Forecast for

Tripoli IA

Tonight
Low: 59 °F
Chance
T-storms then
Chance
Showers and
Patchy Fog
Tuesday
High: 74 °F
Patchy Fog
then Partly
Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy
Wednesday
High: 72 °F
Mostly Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 76 °F
Sunny
Thursday Night
Low: 53 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 59. South wind around 6 mph becoming north after midnight. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 74. North northeast wind 6 to 9 mph.

Tuesday Night

Partly cloudy, with a low around 57. North northeast wind 6 to 8 mph.

Wednesday

Mostly sunny, with a high near 72. North northeast wind 7 to 10 mph.

Wednesday Night

Mostly clear, with a low around 54. North wind 6 to 8 mph.

Thursday

Sunny, with a high near 76.

Thursday Night

Mostly clear, with a low around 53.