Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
60°F
16°C
| Humidity | 67% |
| Wind Speed | W 7 mph |
| Barometer | 29.80 in (1008.9 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 4 Nov 1:53 pm CST |
Extended Forecast for
Herculaneum MO
This Afternoon
High: 61 °F
Mostly Cloudy
Tonight
Low: 42 °F
Gradual
ClearingThursday
High: 65 °F
Sunny
Thursday Night
Low: 43 °F
Isolated
Showers then
Mostly CloudyFriday
High: 56 °F
Partly Sunny
Friday Night
Low: 30 °F
Mostly Clear
Saturday
High: 55 °F
Mostly Sunny
Saturday Night
Low: 29 °F
Mostly Clear
Sunday
High: 60 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 61. West wind 5 to 8 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 42. Light southwest wind.
Thursday
Sunny, with a high near 65. Light and variable wind becoming west 5 to 8 mph in the morning.
Thursday Night
Isolated showers between 9pm and 11pm. Increasing clouds, with a low around 43. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 56. North wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 30.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 31.
Monday
Sunny, with a high near 67.
Monday Night
Clear, with a low around 35.
Tuesday
Sunny, with a high near 67.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Herculaneum MO
38.27°N 90.39°W (Elev. 456 ft)
38.27°N 90.39°W (Elev. 456 ft)
2:21 pm CST Nov 4, 2026
2pm CST Nov 4, 2026-6pm CST Nov 10, 2026
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