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

Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

41°F

5°C

Humidity 100%
Wind Speed Calm
Barometer 29.93 in (1013.6 mb)
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Last update 11 Nov 4:53 am CST
Extended Forecast for

Herculaneum MO

  • Veterans Day

    Veterans Day: Sunny, with a high near 71. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 28 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Northwest wind 5 to 14 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Scattered sprinkles between 11am and 3pm. Partly sunny, with a high near 52. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 52 °F

    Scattered
    Sprinkles

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. Northwest wind 5 to 10 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Sunny, with a high near 71. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 28 mph.
Tonight
Partly cloudy, with a low around 40. Northwest wind 5 to 14 mph, with gusts as high as 28 mph.
Thursday
Scattered sprinkles between 11am and 3pm. Partly sunny, with a high near 52. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 46. Northwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Herculaneum MO
 38.27°N 90.39°W (Elev. 456 ft)
Last Update:
2:46 am CST Nov 11, 2026
Forecast Valid:
5am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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