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

Hazardous Weather Conditions

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fair

68°F

20°C

Humidity 43%
Wind Speed NW 7 mph
Barometer 29.66 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 16 Jun 7:55 pm CDT
Extended Forecast for

Sumner IA

  • Tonight

    Tonight: Showers likely, then showers and possibly a thunderstorm after 4am. Low around 55. West wind 5 to 8 mph becoming south southeast after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Partly Cloudy
    then Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 73. Breezy, with a south southeast wind 13 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 73 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Increasing clouds, with a low around 54. Breezy, with a west northwest wind around 18 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Breezy.
    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 71. Breezy, with a northwest wind around 16 mph, with gusts as high as 23 mph.

    High: 71 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Northwest wind 5 to 10 mph.

    Low: 51 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely, then showers and possibly a thunderstorm after 4am. Low around 55. West wind 5 to 8 mph becoming south southeast after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 73. Breezy, with a south southeast wind 13 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Increasing clouds, with a low around 54. Breezy, with a west northwest wind around 18 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 71. Breezy, with a northwest wind around 16 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 51. Northwest wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 74.
Friday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.85°N 92.1°W
Last Update:
8:07 pm CDT Jun 16, 2026
Forecast Valid:
8pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
Forecast Discussion
 
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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