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Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Light Rain

68°F

20°C

Humidity 94%
Wind Speed NE 15 G 29 mph
Barometer 30.05 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 5 Sep 10:15 am CDT
Extended Forecast for

Alton IA

  • Today

    Today: Showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. High near 91. Northeast wind 10 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Increasing clouds, with a low around 70. Southeast wind 5 to 10 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 86. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. Breezy, with a south southeast wind 15 to 20 mph.

    Low: 72 °F

    Breezy.
    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. High near 91. Northeast wind 10 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Increasing clouds, with a low around 70. Southeast wind 5 to 10 mph.
Sunday
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind around 10 mph. Chance of precipitation is 30%.
Labor Day
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 86. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. Breezy, with a south southeast wind 15 to 20 mph.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alton IA
 42.98°N 96.01°W (Elev. 1283 ft)
Last Update:
9:49 am CDT Sep 5, 2026
Forecast Valid:
10am CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation