National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Mostly Cloudy

80°F

27°C

Humidity 51%
Wind Speed S 12 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 23 Jun 2:52 pm CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. Southwest wind around 10 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly between 7pm and 3am. Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph.

    Low: 60 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light north northwest in the evening.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming northeast around 5 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. East southeast wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. Southwest wind around 10 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 7pm and 3am. Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light north northwest in the evening.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming northeast around 5 mph.
Thursday Night
Partly cloudy, with a low around 58. East southeast wind around 5 mph.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Partly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 72.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
2:48 pm CDT Jun 23, 2026
Forecast Valid:
3pm CDT Jun 23, 2026-6pm CDT Jun 29, 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