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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed SE 15 mph
Barometer 29.68 in
Dewpoint 39°F (4°C)
Visibility 6.00 mi
Wind Chill31°F (-1°C)
Last update 27 Dec 9:35 am CST
Extended Forecast for

Alton IA

  • Today

    Today: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A chance of rain between 3am and 5am, then a chance of snow after 5am. Areas of fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 20. Blustery, with a south southeast wind 5 to 10 mph becoming north northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 20 °F

    Patchy Fog
    then Chance
    Rain/Snow and
    Areas Fog

  • Sunday

    Sunday: Snow, mainly before noon. Patchy blowing snow. Temperature falling to around 12 by 5pm. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    High: 30 °F⇓

    Snow and
    Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Patchy blowing snow. Mostly cloudy, with a low around 5. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 35 mph.

    Low: 5 °F

    Patchy
    Blowing Snow
    and Windy

  • Monday

    Monday: Patchy blowing snow before 1pm. Mostly sunny, with a high near 15. Blustery, with a northwest wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 15 °F

    Patchy
    Blowing Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Northwest wind 5 to 10 mph becoming southwest after midnight.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A chance of rain between 3am and 5am, then a chance of snow after 5am. Areas of fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 20. Blustery, with a south southeast wind 5 to 10 mph becoming north northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday
Snow, mainly before noon. Patchy blowing snow. Temperature falling to around 12 by 5pm. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Sunday Night
Patchy blowing snow. Mostly cloudy, with a low around 5. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 35 mph.
Monday
Patchy blowing snow before 1pm. Mostly sunny, with a high near 15. Blustery, with a northwest wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Mostly clear, with a low around 6. Northwest wind 5 to 10 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 4.
New Year's Day
Mostly sunny, with a high near 15.
Thursday Night
Mostly clear, with a low around 3.
Friday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton IA
 42.98°N 96.01°W (Elev. 1283 ft)
Last Update:
7:38 am CST Dec 27, 2025
Forecast Valid:
9am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation