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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

74°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in (1015.0 mb)
Dewpoint 72°F (22°C)
Visibility 6.00 mi
Last update 18 Aug 5:54 am CDT
Extended Forecast for

2 Miles E Eureka MO

Heat Advisory August 18, 06:01am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 06:01am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. Light south wind. Chance of precipitation is 20%.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 7am. Mostly sunny, with a high near 93. Heat index values as high as 106. Light and variable wind.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. Calm wind becoming south around 5 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. Light south wind. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 7am. Mostly sunny, with a high near 93. Heat index values as high as 106. Light and variable wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Eureka MO
 38.52°N 90.61°W (Elev. 499 ft)
Last Update:
4:16 am CDT Aug 18, 2025
Forecast Valid:
6am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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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