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Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Fair

64°F

18°C

Humidity 94%
Wind Speed SE 14 mph
Barometer 29.93 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 27 Jun 7:35 am CDT
Extended Forecast for

Rock Valley IA

Heat Advisory June 28, 01:00pm until June 29, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 102. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 94 °F

    Breezy.
    Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny and hot, with a high near 97. Breezy, with a south wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 97 °F

    Hot and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 102. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 97. Breezy, with a south wind 20 to 25 mph, with gusts as high as 30 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny and hot, with a high near 95.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 91.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 93.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rock Valley IA
 43.22°N 96.31°W (Elev. 1230 ft)
Last Update:
6:23 am CDT Jun 27, 2026
Forecast Valid:
8am CDT Jun 27, 2026-6pm CDT Jul 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation