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.

Unknown Precip and Breezy

39°F

4°C

Humidity 100%
Wind Speed E 21 G 31 mph
Barometer 29.85 in
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Wind Chill29°F (-2°C)
Last update 1 Apr 9:35 pm CDT
Extended Forecast for

Alton IA

  • Tonight

    Tonight: Showers. Low around 33. Breezy, with an east wind 15 to 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers, mainly before 1pm. High near 43. Breezy, with an east northeast wind 15 to 20 mph becoming north northwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 43 °F

    Showers and
    Breezy then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming east northeast after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 44. East northeast wind 10 to 15 mph. Chance of precipitation is 90%.

    High: 44 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy, with a low around 29. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of rain and snow showers after 1pm. Mostly cloudy, with a high near 41. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Chance of precipitation is 20%.

    High: 41 °F

    Cloudy and
    Breezy then
    Slight Chance
    Rain/Snow and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Blustery.

    Low: 24 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers. Low around 33. Breezy, with an east wind 15 to 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly before 1pm. High near 43. Breezy, with an east northeast wind 15 to 20 mph becoming north northwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming east northeast after midnight.
Friday
Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 44. East northeast wind 10 to 15 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy, with a low around 29. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
A slight chance of rain and snow showers after 1pm. Mostly cloudy, with a high near 41. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 24. Blustery.
Sunday
Sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 66. Breezy.
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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:
8:34 pm CDT Apr 1, 2026
Forecast Valid:
9pm CDT Apr 1, 2026-6pm CDT Apr 8, 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