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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Centerville Municipal Airport (KTVK)

Lat: 40.68°NLon: 92.9°WElev: 1030ft.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 28 Aug 5:55 am CDT
Extended Forecast for

Seymour IA

  • Today

    Today: Sunny, with a high near 85. Light south southwest wind.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South southeast wind 3 to 8 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.

    High: 86 °F

    Mostly Cloudy
    then
    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph.

    High: 93 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94. Breezy.

    High: 94 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Light south southwest wind.
Tonight
Partly cloudy, with a low around 66. South southeast wind 3 to 8 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 73. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 93. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny, with a high near 94. Breezy.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Seymour IA
 40.68°N 93.12°W
Last Update:
5:43 am CDT Aug 28, 2026
Forecast Valid:
6am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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Chance of Precipitation