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

Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Fair and Breezy

28°F

-2°C

Humidity 80%
Wind Speed S 21 mph
Barometer 30.05 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 10 Nov 8:35 pm CST
Extended Forecast for

Alton IA

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 31 by 4am. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 25 °F⇑

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy through mid morning, then gradual clearing, with a high near 51. Southwest wind 10 to 15 mph becoming northwest in the morning. Winds could gust as high as 20 mph.

    High: 51 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. West northwest wind 5 to 10 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. West northwest wind 5 to 10 mph.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58. South southeast wind 5 to 10 mph.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 31 by 4am. South wind 10 to 15 mph, with gusts as high as 30 mph.
Veterans Day
Mostly cloudy through mid morning, then gradual clearing, with a high near 51. Southwest wind 10 to 15 mph becoming northwest in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 28. West northwest wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 51. West northwest wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind becoming south southeast around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 58. South southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 39.
Friday
Mostly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 51.
Sunday Night
A 30 percent chance of rain. Partly cloudy, with a low around 29.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 49.
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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:
6:48 pm CST Nov 10, 2025
Forecast Valid:
8pm CST Nov 10, 2025-6pm CST Nov 17, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation