Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

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

A Few Clouds

83°F

28°C

Humidity 74%
Wind Speed SW 9 mph
Barometer 29.78 in (1007.0 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 27 Jul 10:51 pm CDT
Detailed forecast for

St. Louis County

Overnight
Mostly clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 80s. West winds 5 to 10 mph.
Tuesday
Mostly sunny. Humid with highs in the lower 90s. Northwest winds 5 to 10 mph, becoming north in the afternoon. Heat index values up to 104.
Tuesday Night
Mostly cloudy in the evening, then clearing. Cooler with lows in the upper 60s. Northeast winds 5 to 10 mph. Heat index values up to 100 early in the evening.
Wednesday
Sunny. Highs in the upper 80s. Northeast winds 5 to 10 mph.
Wednesday Night
Clear. Lows in the upper 60s. Northeast winds around 5 mph in the evening, becoming light and variable.
Thursday
Sunny. Highs in the upper 80s.
Thursday Night
Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows around 70. Chance of rain 20 percent.
Friday
Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.
Friday Night
Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 70 percent.
Saturday
Partly sunny. A chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
Saturday Night And Sunday
Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 60s. Highs in the mid 80s. Chance of rain 20 percent.
Sunday Night And Monday
Mostly clear. Lows in the upper 60s. Highs in the mid 80s.



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1028 PM CDT Mon Jul 27 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database