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

Tropical Storm Edouard Along the Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard off the central Gulf Coast will bring tropical storm conditions and heavy rainfall to portions of Upper Texas and southwestern Louisiana coasts Tuesday into Wednesday. Storm Surge Watches and Tropical Storm Warnings are in effect. Hot and humid conditions will continue to expand from the Central Plains into the Ohio Valley and Mid-Atlantic this week. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

84°F

29°C

Humidity 59%
Wind Speed S 7 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 31 Aug 10:54 pm CDT
Extended Forecast for

2 Miles SW Spirit Of St. Louis Airport MO

Heat Advisory September 1, 12:23am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 12:23am until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 73 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 102. Southwest wind around 5 mph becoming calm in the afternoon.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. Calm wind becoming south around 6 mph in the evening.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 3 to 6 mph.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Calm wind becoming south around 5 mph in the evening.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Overnight
Clear, with a low around 73. Southwest wind around 6 mph.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 102. Southwest wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 78. Calm wind becoming south around 6 mph in the evening.
Wednesday
Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 77. Calm wind becoming south around 5 mph in the evening.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 77.
Saturday
Mostly sunny, with a high near 95.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 70.
Labor Day
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Spirit Of St. Louis Airport MO
 38.63°N 90.66°W (Elev. 696 ft)
Last Update:
10:25 pm CDT Aug 31, 2026
Forecast Valid:
12am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation