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

57°F

14°C

Humidity 100%
Wind Speed N 5 mph
Barometer 29.97 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 11:35 pm CDT
Extended Forecast for

Sumner IA

  • Overnight

    Overnight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 53. Light north northwest wind.

    Low: 53 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 76. North northeast wind around 6 mph.

    High: 76 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Light and variable wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 77. Light south southeast wind becoming south 5 to 9 mph in the morning.

    High: 77 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. South southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 53. Light north northwest wind.
Monday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 76. North northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 54. Light and variable wind.
Tuesday
Increasing clouds, with a high near 77. Light south southeast wind becoming south 5 to 9 mph in the morning.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. South southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 79. Breezy.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 66. Breezy.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 83. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.85°N 92.1°W
Last Update:
10:36 pm CDT Jun 21, 2026
Forecast Valid:
12am CDT Jun 22, 2026-6pm CDT Jun 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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