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Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Partly Cloudy

59°F

15°C

Humidity 100%
Wind Speed S 8 mph
Barometer 29.34 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 8:15 am CDT
Extended Forecast for

Alton IA

Wind Advisory June 17, 01:00pm until June 17, 09:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 76. Windy, with a south wind 10 to 20 mph becoming west northwest 20 to 30 mph. Winds could gust as high as 45 mph.

    High: 76 °F

    Chance
    Showers and
    Windy

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 53. Breezy, with a northwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.

    Low: 53 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 76. Northwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 51 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. Light and variable wind becoming west 10 to 15 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 76. Windy, with a south wind 10 to 20 mph becoming west northwest 20 to 30 mph. Winds could gust as high as 45 mph.
Tonight
A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 53. Breezy, with a northwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.
Thursday
A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 76. Northwest wind 10 to 15 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Juneteenth
Mostly sunny, with a high near 82. Light and variable wind becoming west 10 to 15 mph in the morning.
Friday Night
A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Saturday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 83.
Saturday Night
Showers and possibly a thunderstorm. Low around 60. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 78.
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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:
8:28 am CDT Jun 17, 2026
Forecast Valid:
8am CDT Jun 17, 2026-6pm CDT Jun 23, 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