National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Mostly Cloudy

43°F

6°C

Humidity 87%
Wind Speed SE 7 mph
Barometer 29.87 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 16 Feb 10:55 pm CST
Extended Forecast for

Donnan IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. East wind 6 to 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57. Breezy, with a southeast wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 57 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms before 1am, then a slight chance of rain between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Breezy, with a southeast wind 15 to 22 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Breezy.
    Slight Chance
    T-storms then
    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 57. Breezy, with a west wind 16 to 25 mph, with gusts as high as 38 mph.

    High: 57 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32. West wind 8 to 14 mph becoming north after midnight.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Mostly sunny, with a high near 49. Breezy, with a northeast wind 9 to 16 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 28. Blustery, with a northeast wind around 17 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 28 °F

    Rain/Snow
    Likely and
    Blustery

  • Friday

    Friday: A 40 percent chance of snow, mainly before noon. Partly sunny, with a high near 34. Breezy, with a northwest wind 14 to 17 mph.

    High: 34 °F

    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. Northwest wind 8 to 13 mph.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. East wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 57. Breezy, with a southeast wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
A chance of rain and thunderstorms before 1am, then a slight chance of rain between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Breezy, with a southeast wind 15 to 22 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 57. Breezy, with a west wind 16 to 25 mph, with gusts as high as 38 mph.
Wednesday Night
Mostly clear, with a low around 32. West wind 8 to 14 mph becoming north after midnight.
Thursday
A 40 percent chance of rain after noon. Mostly sunny, with a high near 49. Breezy, with a northeast wind 9 to 16 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 28. Blustery, with a northeast wind around 17 mph becoming northwest after midnight. Chance of precipitation is 70%.
Friday
A 40 percent chance of snow, mainly before noon. Partly sunny, with a high near 34. Breezy, with a northwest wind 14 to 17 mph.
Friday Night
Mostly cloudy, with a low around 20. Northwest wind 8 to 13 mph.
Saturday
Mostly sunny, with a high near 33. Northwest wind 8 to 11 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 18. Northwest wind around 10 mph.
Sunday
Mostly sunny, with a high near 29. Northwest wind 10 to 13 mph.
Sunday Night
Mostly clear, with a low around 14. Northwest wind 7 to 10 mph.
Monday
Sunny, with a high near 33. North wind 7 to 10 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Donnan IA
 42.89°N 91.86°W
Last Update:
10:56 pm CST Feb 16, 2026
Forecast Valid:
11pm CST Feb 16, 2026-6pm CST Feb 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation