Major Heat Wave Expected for Two-Thirds of the U.S.

A dangerous and widespread summer heat wave is expected through this upcoming weekend across much of the Central and Eastern U.S. A large dome of high pressure will allow high temperatures to surge into the 90s and 100s in many locations, while heat indices will top 100 and approach 110 degrees or higher. There also will be no relief at night, as low temperatures remain in the upper 70s and 80s. Read More >

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed Calm
Barometer 29.86 in (1010.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 16 Jul 7:52 pm CDT
Extended Forecast for

Sioux City IA

Excessive Heat Watch July 17, 01:00pm until July 19, 07:00pm
Click here for hazard details and duration
Excessive Heat Watch
  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 4am.  Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 73 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly before 7am.  Partly sunny, with a high near 94. Heat index values as high as 107. Southeast wind 10 to 15 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    High: 94 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 72. South wind 5 to 10 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Heat index values as high as 106. South wind 5 to 10 mph.

    Hot

    High: 96 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Mostly Clear

    Low: 76 °F

  • Friday

    Friday: Sunny and hot, with a high near 97. South wind 5 to 10 mph.

    Hot

    High: 97 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 73.

    Mostly Clear

    Low: 73 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 93.

    Mostly Sunny

    High: 93 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 70 °F

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 94. Heat index values as high as 107. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72. South wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday
Sunny and hot, with a high near 96. Heat index values as high as 106. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Friday
Sunny and hot, with a high near 97. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 73.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 86.
Click Map For Forecast
Point Forecast:
Sioux City IA
 42.49°N 96.39°W (Elev. 1099 ft)
6:44 pm CDT Jul 16, 2019
8pm CDT Jul 16, 2019-6pm CDT Jul 23, 2019
 
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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