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

Dangerous Surf and Rip Currents Along East Coast Beaches; Hazardous Heat in the West

Tropical storm conditions, storm surge flooding and coastal flooding will continue into Thursday across the Outer Banks and into portions of the Mid-Atlantic coastline. Life-threatening rip currents and high surf will continue to impact much of the Atlantic shoreline through the end of the week. Hazardous, record heat will continue across the Western U.S. through the weekend. Read More >

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fair

66°F

19°C

Humidity 100%
Wind Speed E 6 mph
Barometer 30.14 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 21 Aug 12:15 am CDT
Extended Forecast for

Sumner IA

  • Overnight

    Overnight: Partly cloudy, with a low around 62. East wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. East wind 3 to 5 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Light east southeast wind.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. West 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: 60 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. East wind around 6 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. East wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 61. Light east southeast wind.
Friday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. West 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.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.87°N 92.1°W
Last Update:
10:49 pm CDT Aug 20, 2025
Forecast Valid:
12am CDT Aug 21, 2025-6pm CDT Aug 27, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation