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.

Mostly Cloudy

77°F

25°C

Humidity 94%
Wind Speed E 8 mph
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Jul 10:35 pm CDT
Extended Forecast for

Rock Valley IA

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke. Sunny, with a high near 91. Heat index values as high as 101. South southeast wind 5 to 10 mph.

    High: 91 °F

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke. Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph.

    Low: 69 °F

    Patchy Smoke

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Patchy smoke before 8am. Mostly cloudy, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 83 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 65. South southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 90%.

    Low: 65 °F

    Showers

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

Detailed Forecast

Tonight
Patchy smoke. Mostly clear, with a low around 69. Southeast wind around 5 mph.
Wednesday
Patchy smoke. Sunny, with a high near 91. Heat index values as high as 101. South southeast wind 5 to 10 mph.
Wednesday Night
Patchy smoke. Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Patchy smoke before 8am. Mostly cloudy, with a high near 83. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 65. South southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 90%.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 80.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rock Valley IA
 43.22°N 96.31°W (Elev. 1230 ft)
Last Update:
10:38 pm CDT Jul 28, 2026
Forecast Valid:
10pm CDT Jul 28, 2026-6pm CDT Aug 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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