Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy Rains and Potential for Flash Floods

Severe thunderstorms with damaging winds and heavy rains will be possible from the Ohio Valley to the Northeast Tuesday. In addition, heavy rains possible in the central Plains and southern Rockies. Heavy rain threat moves into the southern Mid-Atlantic Wednesday. Dry conditions remain out west where isolated dry thunderstorms could exacerbate ongoing fires and start new fires. Read More >

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

57°F

14°C

Humidity 96%
Wind Speed NW 6 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 22 Aug 6:52 am CDT
Extended Forecast for

Sioux City IA

  • Today

    Today: Sunny, with a high near 77. North northwest wind 5 to 15 mph.

    Sunny

    High: 77 °F

  • Tonight

    Tonight: Clear, with a low around 53. North northwest wind 5 to 10 mph becoming light and variable  in the evening.

    Clear

    Low: 53 °F

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.

    Sunny

    High: 80 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers after 1am.  Partly cloudy, with a low around 59. South southeast wind around 5 mph.  Chance of precipitation is 20%.

    Partly Cloudy
    then Slight
    Chance
    Showers

    Low: 59 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 79. South southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 79 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Mostly Cloudy
    then Chance
    Showers

    Low: 61 °F

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 77. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 77 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Chance
    T-storms

    Low: 62 °F

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 78. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 78 °F

Detailed Forecast

Today
Sunny, with a high near 77. North northwest wind 5 to 15 mph.
Tonight
Clear, with a low around 53. North northwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 59. South southeast wind around 5 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 79. South southeast wind 5 to 10 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 77.
Click Map For Forecast
Point Forecast:
Sioux City IA
 42.49°N 96.39°W (Elev. 1099 ft)
6:45 am CDT Aug 22, 2017
7am CDT Aug 22, 2017-6pm CDT Aug 28, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database