Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fair

66°F

19°C

Humidity 43%
Wind Speed S 8 mph
Barometer 30.12 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 3 Oct 6:15 pm CDT
Extended Forecast for

Sumner IA

  • Tonight

    Tonight: A slight chance of showers between 8pm and 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 49. South wind 6 to 10 mph becoming west northwest after midnight.  Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. Light northwest wind.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48. South wind 5 to 9 mph.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Breezy.

    High: 69 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. South wind 6 to 10 mph becoming west northwest after midnight. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 64. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 43. Light northwest wind.
Monday
Sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Clear, with a low around 48. South wind 5 to 9 mph.
Tuesday
Sunny, with a high near 69. Breezy.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 50.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 73. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.85°N 92.1°W
5:43 pm CDT Oct 3, 2026
6pm CDT Oct 3, 2026-6pm CDT Oct 10, 2026
 
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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