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.

Fair

27°F

-3°C

Humidity 86%
Wind Speed SW 8 mph
Barometer 30.14 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 12 Jan 2:15 am CST
Extended Forecast for

Sumner IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 41. Southwest wind 7 to 10 mph.

    High: 41 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44. Breezy, with a west wind 15 to 20 mph, with gusts as high as 28 mph.

    High: 44 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Windy, with a west northwest wind 18 to 26 mph, with gusts as high as 36 mph.

    Low: 23 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 27. Windy.

    High: 27 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 12. Blustery.

    Low: 12 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 41. Southwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 31. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 44. Breezy, with a west wind 15 to 20 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 23. Windy, with a west northwest wind 18 to 26 mph, with gusts as high as 36 mph.
Wednesday
Partly sunny, with a high near 27. Windy.
Wednesday Night
Mostly clear, with a low around 12. Blustery.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 27.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23.
Friday
Snow likely, mainly after noon. Mostly cloudy, with a high near 31. Blustery. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 9. Blustery.
Saturday
Mostly cloudy, with a high near 16. Blustery.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 21. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.85°N 92.1°W
Last Update:
10:51 pm CST Jan 11, 2026
Forecast Valid:
2am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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