Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Mostly Cloudy
37°F
3°C
| Humidity | 52% |
| Wind Speed | SE 12 mph |
| Barometer | 30.01 in (1017.1 mb) |
| Dewpoint | 21°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 18 Mar 6:51 am CDT |
Extended Forecast for
Saint Charles MO
Today
High: 65 °F
Becoming
SunnyTonight
Low: 46 °F
Mostly Cloudy
Thursday
High: 71 °F
Mostly Sunny
Thursday Night
Low: 49 °F
Mostly Clear
Friday
High: 78 °F
Sunny
Friday Night
Low: 54 °F
Partly Cloudy
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 57 °F
Mostly Clear
Sunday
High: 79 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 65. South wind 6 to 9 mph becoming west in the afternoon.
Tonight
Mostly cloudy, with a low around 46. Light and variable wind.
Thursday
Mostly sunny, with a high near 71. Light and variable wind becoming west around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 49. Light and variable wind.
Friday
Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 53.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 59.
Additional Forecasts and Information
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Point Forecast:
Saint Charles MO
38.78°N 90.51°W (Elev. 597 ft)
38.78°N 90.51°W (Elev. 597 ft)
5:36 am CDT Mar 18, 2026
7am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
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