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.

Overcast

68°F

20°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.85 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Jun 1:15 am CDT
Extended Forecast for

Alton IA

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms, mainly after 3am. Cloudy, with a steady temperature around 67. North northwest wind around 5 mph.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North northeast wind 5 to 10 mph.

    Low: 59 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. North northeast wind around 10 mph.

    High: 78 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable.

    Low: 58 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 91. Breezy.

    High: 91 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Breezy.

    Low: 72 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Cloudy, with a steady temperature around 67. North northwest wind around 5 mph.
Tuesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North northeast wind 5 to 10 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. North northeast wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable.
Juneteenth
Sunny, with a high near 88. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
Sunny, with a high near 91. Breezy.
Friday Night
Mostly clear, with a low around 72. Breezy.
Saturday
Sunny and hot, with a high near 98. Breezy.
Saturday Night
Mostly clear, with a low around 73. Breezy.
Sunday
Sunny and hot, with a high near 97. Breezy.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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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:
10:31 pm CDT Jun 16, 2025
Forecast Valid:
1am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
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