
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.
A Few Clouds
62°F
17°C
| Humidity | 62% |
| Wind Speed | NE 9 mph |
| Barometer | 30.15 in (1020.4 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 21 May 9:51 am CDT |
Extended Forecast for
Clayton MO
Today

High: 71 °F
Increasing
CloudsTonight

Low: 57 °F
Cloudy
Friday

High: 71 °F
Showers
LikelyFriday Night

Low: 59 °F
Chance
ShowersSaturday
High: 82 °F
Partly Sunny
then Chance
T-stormsSaturday Night
Low: 62 °F
Chance
T-storms then
Chance
ShowersSunday

High: 82 °F
Showers
LikelySunday Night

Low: 63 °F
Mostly Cloudy
Memorial Day

High: 83 °F
Slight Chance
T-storms
Detailed Forecast
Today
Increasing clouds, with a high near 71. East wind around 8 mph.
Tonight
Cloudy, with a low around 57. East wind 6 to 8 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 71. East wind around 8 mph. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 59. East wind around 6 mph becoming light and variable.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. West wind 3 to 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 63.
Memorial Day
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Clayton MO
38.64°N 90.34°W (Elev. 522 ft)
38.64°N 90.34°W (Elev. 522 ft)
8:21 am CDT May 21, 2026
10am CDT May 21, 2026-6pm CDT May 27, 2026



