Three Weather Areas of Concern Today

Potential Tropical Cyclone Three will gradually approach the northern Gulf Coast with heavy rain and potential flooding. Meanwhile, a sharp cold front will produce severe thunderstorms with significant winds, hail, tornadoes and possible flooding across the Ohio Valley. Finally, a large dome of high pressure will continue the major heat wave over the West, extending into the central Plains. Read More >

Hazardous Weather Conditions

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Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

98°F

37°C

Humidity	35%
Wind Speed	NW 10 G 20 mph
Barometer	29.89 in (1010.5 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	18 Jun 12:51 pm CDT

More Information:

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

Extended Forecast for

Saint Louis MO

Heat Advisory until June 18, 07:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until June 18, 07:00pm

NOW until
7:00pm Fri

Heat Advisory
This
Afternoon

Hot
High: 102 °F
Tonight

Partly Cloudy
Low: 79 °F
Saturday

Mostly Sunny
then Slight
Chance
T-storms
High: 97 °F
Saturday
Night

Partly Cloudy
Low: 75 °F
Sunday

Mostly Sunny
then Slight
Chance
T-storms
High: 97 °F
Sunday
Night

Partly Cloudy
then Chance
T-storms
Low: 75 °F
Monday

T-storms
Likely
High: 86 °F
Monday
Night

Chance
T-storms
Low: 59 °F

Detailed Forecast

This Afternoon

Sunny and hot, with a high near 102. Heat index values as high as 107. Southwest wind around 11 mph.

Tonight

Partly cloudy, with a low around 79. Southwest wind 7 to 9 mph.

Saturday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 7 to 9 mph.

Saturday Night

Partly cloudy, with a low around 75. South wind 3 to 6 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. South wind 5 to 10 mph, with gusts as high as 21 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.

Monday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

Monday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 59.

Tuesday

Sunny, with a high near 78.

Tuesday Night

Mostly clear, with a low around 58.

Wednesday

Mostly sunny, with a high near 81.