Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

A Few Clouds

86°F

30°C

Humidity 77%
Wind Speed S 6 mph
Barometer 29.95 in (1013.1 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 10 Aug 8:54 pm CDT
Extended Forecast for

Eureka MO

Extreme Heat Warning August 10, 09:31pm until August 12, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 10, 09:31pm until August 12, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 107. Southwest wind 3 to 6 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. Light southwest wind.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 93. Heat index values as high as 105. West wind 3 to 6 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. Light south wind.
Tuesday
Sunny, with a high near 96. Heat index values as high as 107. Southwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 76. Light southwest wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 105. West wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 75. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka MO
 38.5°N 90.63°W (Elev. 492 ft)
8:47 pm CDT Aug 10, 2026
9pm CDT Aug 10, 2026-6pm CDT Aug 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database