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.

A Few Clouds

30°F

-1°C

Humidity 75%
Wind Speed N 15 mph
Barometer 30.10 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Apr 4:15 am CDT
Extended Forecast for

Alton IA

  • Today

    Today: A chance of sprinkles between 1pm and 2pm, then a chance of showers after 2pm. Increasing clouds, with a high near 54. Northwest wind around 5 mph becoming east northeast in the afternoon. Chance of precipitation is 30%.

    High: 54 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Northeast wind 5 to 10 mph.

    Low: 28 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. Northeast wind around 5 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 40. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 66 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Cloudy, with a low around 58. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: A 50 percent chance of showers. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A chance of sprinkles between 1pm and 2pm, then a chance of showers after 2pm. Increasing clouds, with a high near 54. Northwest wind around 5 mph becoming east northeast in the afternoon. Chance of precipitation is 30%.
Tonight
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 58. Northeast wind around 5 mph.
Friday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 40. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Cloudy, with a low around 58. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 80. Breezy.
Sunday Night
Mostly clear, with a low around 55.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 81.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 47.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 63.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 38.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 61.
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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:
2:48 am CDT Apr 9, 2026
Forecast Valid:
4am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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