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Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair and Windy

97°F

36°C

Humidity 42%
Wind Speed S 28 G 39 mph
Barometer 29.54 in (998.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 21 Jun 2:52 pm CDT
Extended Forecast for

2 Miles ENE Sioux City IA

Extreme Heat Warning June 21, 03:41pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 21, 03:41pm until June 22, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Hot and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 79. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 79 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Heat index values as high as 106. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 100 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Northwest wind around 10 mph.

    High: 78 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. East northeast wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Chance
    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 66. Chance of precipitation is 90%.

    Low: 66 °F

    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a steady temperature around 98. Heat index values as high as 106. Breezy, with a south southwest wind around 25 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 79. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday
Sunny and hot, with a high near 100. Heat index values as high as 106. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Northwest wind around 10 mph.
Monday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. East northeast wind 5 to 10 mph. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 66. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Sioux City IA
 42.52°N 96.36°W (Elev. 1204 ft)
Last Update:
3:06 pm CDT Jun 21, 2025
Forecast Valid:
3pm CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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