NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Overcast
65°F
18°C
| Humidity | 70% |
| Wind Speed | N 5 mph |
| Barometer | 30.18 in (1021.5 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 20 May 10:51 pm CDT |
Extended Forecast for
Saint Charles MO
Tonight
Low: 54 °F
Partly Cloudy
Thursday
High: 72 °F
Mostly Sunny
Thursday Night
Low: 57 °F
Mostly Cloudy
then Chance
ShowersFriday
High: 70 °F
Showers
Friday Night
Low: 58 °F
Chance
ShowersSaturday
High: 80 °F
Mostly Cloudy
then Chance
T-stormsSaturday Night
Low: 60 °F
Chance
T-stormsSunday
High: 80 °F
Chance
ShowersSunday Night
Low: 61 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Cloudy early, then becoming partly cloudy, with a low around 54. Northeast wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 72. East wind 7 to 9 mph.
Thursday Night
A 30 percent chance of showers after 4am. Increasing clouds, with a low around 57. East wind 6 to 9 mph.
Friday
Showers, with thunderstorms also possible after 1pm. High near 70. East wind around 8 mph. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 58. Northeast wind around 6 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.
Memorial Day
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Additional Forecasts and Information
Basemap Options
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Saint Charles MO
38.8°N 90.51°W (Elev. 499 ft)
38.8°N 90.51°W (Elev. 499 ft)
10:41 pm CDT May 20, 2026
11pm CDT May 20, 2026-6pm CDT May 27, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
