Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
75°F
24°C
| Humidity | 32% |
| Wind Speed | E 7 mph |
| Barometer | 30.13 in (1020.2 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 3 Oct 4:53 pm CDT |
Extended Forecast for
Herculaneum MO
Tonight
Low: 48 °F
Partly Cloudy
Sunday
High: 79 °F
Sunny
Sunday Night
Low: 51 °F
Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 47 °F
Clear
Tuesday
High: 78 °F
Sunny
Tuesday Night
Low: 50 °F
Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 53 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 48. Calm wind.
Sunday
Sunny, with a high near 79. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Clear, with a low around 51. Light north wind.
Monday
Sunny, with a high near 75. Calm wind becoming northeast around 5 mph in the morning.
Monday Night
Clear, with a low around 47. Light east wind.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 84.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 87.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Herculaneum MO
38.25°N 90.39°W (Elev. 499 ft)
38.25°N 90.39°W (Elev. 499 ft)
1:45 pm CDT Oct 3, 2026
5pm CDT Oct 3, 2026-6pm CDT Oct 10, 2026
Additional Resources
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