


Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Mostly Cloudy
89°F
32°C
Humidity | 52% |
Wind Speed | SW 9 mph |
Barometer | 29.83 in (1008.9 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Heat Index | 94°F (34°C) |
Last update | 17 Jun 2:51 pm CDT |
Extended Forecast for
Saint Charles MO
Tonight
Low: 73 °F
Slight Chance
T-stormsWednesday
High: 84 °F
Chance
T-storms then
Heavy RainWednesday Night
Low: 67 °F
Chance
T-storms then
Partly CloudyJuneteenth
High: 85 °F
Sunny
Thursday Night
Low: 67 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 95 °F
Sunny
Saturday Night
Low: 78 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 73. South wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 84. Southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Southwest wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 85. Northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Additional Forecasts and Information
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ABOUT 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)
2:52 pm CDT Jun 17, 2025
3pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025