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.

Fair

64°F

18°C

Humidity 88%
Wind Speed S 15 G 21 mph
Barometer 29.86 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 11 Sep 6:55 am CDT
Extended Forecast for

Rock Valley IA

  • Today

    Today: Mostly sunny, with a high near 84. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 84 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. North wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 51. Calm wind.

    Low: 51 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 53. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 1pm, then a chance of showers. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Tonight
Mostly clear, with a low around 57. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 73. North wind 5 to 10 mph.
Saturday Night
Increasing clouds, with a low around 51. Calm wind.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 53. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm before 1pm, then a chance of showers. High near 74. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 72.
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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:
6:32 am CDT Sep 11, 2026
Forecast Valid:
7am CDT Sep 11, 2026-6pm CDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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