Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75° N Lon: 90.37° W Elev: 604 ft.

Mostly Cloudy

82°F

28°C

Humidity 65%
Wind Speed W 12 mph
Barometer 29.93 in (1012.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 9 Jul 1:51 pm CDT
Detailed forecast for

St. Louis City

This Afternoon
Mostly cloudy with scattered showers and thunderstorms. Near steady temperature in the upper 80s. West winds around 5 mph. Chance of rain 50 percent.
Tonight
Mostly cloudy. Scattered showers and thunderstorms in the evening, then numerous showers and thunderstorms after midnight. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 70 percent.
Friday
Partly sunny with scattered showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds around 5 mph, becoming northwest in the afternoon. Chance of rain 50 percent. Heat index values up to 101.
Friday Night
Numerous showers and thunderstorms. Humid with lows around 70. Northeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.
Saturday
Partly sunny with a chance of showers and thunderstorms. Humid with highs in the mid 80s. Southeast winds around 5 mph, becoming north around 5 mph in the afternoon. Chance of rain 50 percent.
Saturday Night
Partly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent.
Sunday
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
Sunday Night Through Wednesday
Mostly clear. Lows around 70. Highs around 90.



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128 PM CDT Thu Jul 9 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database