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

Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the 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

82°F

28°C

Humidity 67%
Wind Speed Calm
Barometer 29.99 in (1014.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 2 Sep 1:54 am CDT
Extended Forecast for

Eureka MO

Heat Advisory September 2, 02:34am until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 02:34am until September 5, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming southwest around 5 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Light south wind.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 104. Light southwest wind.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Friday

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

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Light south wind.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 77. Light south wind.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 104. Light southwest wind.
Thursday Night
Mostly clear, with a low around 77. Calm wind.
Friday
Sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny and hot, with a high near 97.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Sunday Night
Partly cloudy, with a low around 69.
Labor Day
Mostly sunny, with a high near 92.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Eureka MO
 38.5°N 90.63°W (Elev. 492 ft)
Last Update:
1:26 am CDT Sep 2, 2026
Forecast Valid:
2am CDT Sep 2, 2026-6pm CDT Sep 8, 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