Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
A Few Clouds
54°F
12°C
| Humidity | 87% |
| Wind Speed | Calm |
| Barometer | 30.08 in (1017.9 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 8 Oct 6:51 am CDT |
Extended Forecast for
Saint Charles MO
Today
High: 85 °F
Patchy Fog
then SunnyTonight
Low: 60 °F
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 63 °F
Clear
Saturday
High: 84 °F
Mostly Sunny
Saturday Night
Low: 61 °F
Chance
ShowersSunday
High: 79 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Columbus Day
High: 90 °F
Sunny
Detailed Forecast
Today
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Light and variable wind.
Tonight
Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 89. South wind 5 to 8 mph.
Friday Night
Clear, with a low around 63. South wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 84. South wind 5 to 9 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 60.
Columbus Day
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 63.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 78.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 75.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Saint Charles MO
38.78°N 90.51°W (Elev. 597 ft)
38.78°N 90.51°W (Elev. 597 ft)
5:31 am CDT Oct 8, 2026
7am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
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