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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

16°C

61°F

Humidity 78%
Wind Speed N 11 km/h
Barometer 1018.7 mb (30.09 in)
Dewpoint 12°C (54°F)
Visibility 16 km
Last update 29 May 2:53 am CDT
Extended Forecast for

Herculaneum MO

  • Overnight

    Overnight: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 25. North wind 3 to 8 km/h.

    High: 25 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 12. Calm wind.

    Low: 12 °C

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 26. Calm wind becoming east 5 to 10 km/h in the morning.

    High: 26 °C

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. East wind 3 to 8 km/h.

    Low: 13 °C

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27.

    High: 27 °C

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.

    Low: 15 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.

    High: 26 °C

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 16.

    Low: 16 °C

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 13. Calm wind.
Wednesday
Sunny, with a high near 25. North wind 3 to 8 km/h.
Wednesday Night
Mostly clear, with a low around 12. Calm wind.
Thursday
Sunny, with a high near 26. Calm wind becoming east 5 to 10 km/h in the morning.
Thursday Night
Partly cloudy, with a low around 13. East wind 3 to 8 km/h.
Friday
Mostly sunny, with a high near 27.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 16.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 29.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 18.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 30.
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:
3:07 am CDT May 29, 2024
Forecast Valid:
3am CDT May 29, 2024-6pm CDT Jun 4, 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