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

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Fair

57°F

14°C

Humidity 82%
Wind Speed S 7 mph
Barometer 29.99 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 7:35 am CDT
Extended Forecast for

5 Miles SSW Alton IA

  • Juneteenth

    Juneteenth: A 50 percent chance of showers, mainly between 11am and 5pm. Mostly cloudy, with a high near 75. Light and variable wind becoming northwest 10 to 15 mph in the morning.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 57. East wind around 10 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 53. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Juneteenth
A 50 percent chance of showers, mainly between 11am and 5pm. Mostly cloudy, with a high near 75. Light and variable wind becoming northwest 10 to 15 mph in the morning.
Tonight
Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 57. East wind around 10 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 53. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Alton IA
 42.94°N 96.07°W (Elev. 1299 ft)
Last Update:
7:13 am CDT Jun 19, 2026
Forecast Valid:
7am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation