Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

76°F

24°C

Humidity 88%
Wind Speed SE 7 mph
Barometer 29.94 in (1012.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 26 Jul 11:52 pm CDT
Extended Forecast for

5 Miles SW Sloan IA

Extreme Heat Warning July 27, 12:00pm until July 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Overnight

    Overnight: Mostly clear, with a low around 69. South southeast wind around 6 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 95. Heat index values as high as 107. South wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 95 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 110. South southeast wind 5 to 8 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. South southeast wind 6 to 8 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 91. Southeast wind 6 to 9 mph.  Chance of precipitation is 20%.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 67. Northeast wind 8 to 10 mph.  Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 78. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 62. Northeast wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 69. South southeast wind around 6 mph.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 95. Heat index values as high as 107. South wind 6 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 73. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 110. South southeast wind 5 to 8 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South southeast wind 6 to 8 mph.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 91. Southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Tuesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 67. Northeast wind 8 to 10 mph. Chance of precipitation is 70%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Northeast wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 75. East wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 59. East wind 6 to 10 mph.
Friday
A slight chance of showers. Mostly cloudy, with a high near 72. East southeast wind 6 to 11 mph, with gusts as high as 17 mph.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 58. Southeast wind 6 to 9 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 75. South southeast wind 7 to 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Sloan IA
 42.2°N 96.29°W (Elev. 1066 ft)
12:00 am CDT Jul 27, 2025
12am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
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Additional Resources

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