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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Thunderstorm in Vicinity

22°C

72°F

Humidity 76%
Wind Speed E 15 km/h
Barometer 1003.6 mb (29.64 in)
Dewpoint 18°C (64°F)
Visibility 16 km
Last update 8 May 12:53 pm CDT
Extended Forecast for

Herculaneum MO

Flood Warning until further notice
Flood Watch until May 9, 12:00am
Tornado Watch May 8, 02:03pm until May 8, 05:00pm
Flash Flood Warning until May 8, 03:45pm
Click here for hazard details and duration
Flood Warning until further notice
Flood Watch
Tornado Watch
Flash Flood Warning
  •  
    Flood Warning until further notice
    Flood Watch until May 9, 12:00am
    Tornado Watch May 8, 02:03pm until May 8, 05:00pm
    Flash Flood Warning until May 8, 03:45pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 28 °C

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before midnight. Low around 14. Southeast wind 13 to 21 km/h becoming west after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 80%.

    Low: 14 °C

    T-storms then
    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 24. West wind 16 to 24 km/h, with gusts as high as 37 km/h.

    High: 24 °C

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. North wind 10 to 18 km/h.

    Low: 11 °C

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 22. North wind 10 to 16 km/h.

    High: 22 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 11.

    Low: 11 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 24.

    High: 24 °C

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11.

    Low: 11 °C

    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 28. Southeast wind around 14 km/h, with gusts as high as 32 km/h. Chance of precipitation is 100%.
Tonight
Showers and thunderstorms, mainly before midnight. Low around 14. Southeast wind 13 to 21 km/h becoming west after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 80%.
Thursday
Sunny, with a high near 24. West wind 16 to 24 km/h, with gusts as high as 37 km/h.
Thursday Night
Partly cloudy, with a low around 11. North wind 10 to 18 km/h.
Friday
Mostly sunny, with a high near 22. North wind 10 to 16 km/h.
Friday Night
Mostly clear, with a low around 11.
Saturday
Sunny, with a high near 24.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 13. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 27.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 14.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 28.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Herculaneum MO
 38.27°N 90.39°W (Elev. 456 m)
Last Update:
1:52 pm CDT May 8, 2024
Forecast Valid:
2pm CDT May 8, 2024-6pm CDT May 14, 2024
 
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