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.

A Few Clouds

70°F

21°C

Humidity 88%
Wind Speed E 12 mph
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Sep 6:15 pm CDT
Extended Forecast for

Sumner IA

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. South southeast wind 6 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South southeast 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: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind around 6 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. South southeast wind 6 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South southeast 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.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind around 6 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 80.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 79.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 75.
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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:
6:22 pm CDT Sep 17, 2025
Forecast Valid:
6pm CDT Sep 17, 2025-6pm CDT Sep 24, 2025
 
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