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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fair

75°F

24°C

Humidity 57%
Wind Speed S 15 mph
Barometer 29.89 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Oct 6:55 pm CDT
Extended Forecast for

Sumner IA

  • Tonight

    Tonight: Clear, with a low around 58. Breezy, with a south wind 13 to 16 mph, with gusts as high as 30 mph.

    Low: 58 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 82. South wind 13 to 15 mph, with gusts as high as 21 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: Mostly cloudy, then gradually becoming sunny, with a high near 84. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. South wind 8 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 58. Breezy, with a south wind 13 to 16 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 82. South wind 13 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 66. South wind 10 to 13 mph, with gusts as high as 20 mph.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 84. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 60. South wind 8 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 73.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 53.
Wednesday
A 40 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 66.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 64. Breezy.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47.
Friday
Partly sunny, with a high near 59. Windy.
Friday Night
Partly cloudy, with a low around 39. Windy.
Saturday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumner IA
 42.85°N 92.1°W
Last Update:
5:51 pm CDT Oct 10, 2026
Forecast Valid:
7pm CDT Oct 10, 2026-6pm CDT Oct 17, 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