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.

Partly Cloudy

61°F

16°C

Humidity 100%
Wind Speed NW 7 mph
Barometer 29.67 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Apr 9:35 pm CDT
Extended Forecast for

4 Miles N Sumner IA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could be severe. Mostly cloudy, with a low around 54. North wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 68. East northeast wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 52. East northeast wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    T-storms
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 73. North northwest wind 7 to 10 mph becoming west southwest in the afternoon.

    High: 73 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. South southeast wind 7 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Windy. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Partly Sunny
    and Breezy
    then Showers
    Likely and
    Windy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 38. Breezy. Chance of precipitation is 80%.

    Low: 38 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A chance of rain showers before 10am, then a chance of rain and snow showers. Partly sunny, with a high near 47. Windy. Chance of precipitation is 30%.

    High: 47 °F

    Chance
    Rain/Snow and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. Windy.

    Low: 29 °F

    Mostly Cloudy
    and Windy
    then Partly
    Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could be severe. Mostly cloudy, with a low around 54. North wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 68. East northeast wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 52. East northeast wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 73. North northwest wind 7 to 10 mph becoming west southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 55. South southeast wind 7 to 10 mph.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Windy. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 38. Breezy. Chance of precipitation is 80%.
Saturday
A chance of rain showers before 10am, then a chance of rain and snow showers. Partly sunny, with a high near 47. Windy. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 29. Windy.
Sunday
Sunny, with a high near 49. Breezy.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 58. Breezy.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 66. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sumner IA
 42.89°N 92.07°W
Last Update:
6:52 pm CDT Apr 14, 2026
Forecast Valid:
9pm CDT Apr 14, 2026-6pm CDT Apr 21, 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