Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Extreme Heat Watch in effect from August 9, 12:00 PM CDT until August 12, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

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

A Few Clouds

72°F

22°C

Humidity	84%
Wind Speed	Calm
Barometer	30.07 in (1017.0 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	8 Aug 6:51 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

St. Louis City

Today

Sunny. Highs around 90. West winds around 5 mph. Heat index values up to 101.

Tonight

Mostly clear. Humid with lows in the lower 70s. Southeast winds around 5 mph. Heat index values up to 100 early in the evening.

Sunday

Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 106.

Sunday Night

Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening.

Monday

Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 109 in the afternoon.

Monday Night And Tuesday

Mostly clear. Lows in the upper 70s. Highs in the mid 90s. Heat index values up to 110.

Tuesday Night And Wednesday

Partly cloudy. A chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.

Wednesday Night

Partly cloudy with a chance of thunderstorms. A chance of showers. Lows in the lower 70s. Chance of rain 50 percent. Heat index values up to 105 early in the evening.

Thursday

Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

Thursday Night

Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 60 percent.

Friday

Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.