Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66° N Lon: 90.66° W Elev: 463 ft.

A Few Clouds

75°F

24°C

Humidity 71%
Wind Speed Vrbl 3 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 31 Jul 4:54 am CDT
Detailed forecast for

Jefferson County

Today
Showers likely with a slight chance of thunderstorms this morning, then showers likely with a chance of thunderstorms this afternoon. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 70 percent.
Tonight
Mostly cloudy with a chance of thunderstorms. Showers, mainly in the evening. Humid with lows in the upper 60s. South winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 90 percent.
Saturday
Mostly cloudy. Showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. West winds around 10 mph with gusts up to 25 mph. Chance of rain 60 percent.
Saturday Night
Showers likely, mainly in the evening. Lows in the mid 60s. Northwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.
Sunday
Partly sunny with a 40 percent chance of showers. Highs around 80. North winds 5 to 10 mph with gusts up to 20 mph.
Sunday Night
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s.
Monday
Mostly sunny. A slight chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.
Monday Night
Mostly clear. Lows in the mid 60s.
Tuesday
Sunny. A slight chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.
Tuesday Night Through Wednesday Night
Mostly clear. Lows in the upper 60s. Highs around 90.
Thursday
Mostly sunny. Highs in the lower 90s. Heat index values up to 105.



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249 AM CDT Fri Jul 31 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database