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NWS Seeking Comments on Changes to Red Flag Warning Format

Hazardous Weather Conditions

Heat Advisory in effect from July 26, 11:00 AM CDT until July 27, 09:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

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

Fair

83°F

28°C

Humidity	85%
Wind Speed	S 3 mph
Barometer	29.95 in (1012.7 mb)
Dewpoint	78°F (26°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	25 Jul 11:51 pm CDT

More Information:

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

Detailed forecast for

St. Louis County

Tonight

Mostly clear this evening, then becoming partly cloudy. Lows in the mid 70s. South winds around 5 mph this evening, becoming light and variable. Heat index values up to 106 early this evening.

Sunday

Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 30 percent. Heat index values up to 108.

Sunday Night

Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108 early in the evening.

Monday

Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 112.

Monday Night

Mostly clear. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 111 early in the evening.

Tuesday

Sunny. Highs in the lower 90s. Heat index values up to 105.

Tuesday Night

Partly cloudy in the evening, then clearing. Lows in the lower 70s. Heat index values up to 100 early in the evening.

Wednesday Through Thursday

Mostly clear. Highs in the upper 80s. Lows in the upper 60s.

Thursday Night

Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent.