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Excessive Heat Spreads East; Many Areas with Heavy Rain Threats

Hot and muggy conditions are forecast to continue across the Midwest and Northeast, while spreading eastward. A frontal boundary bringing very heavy rains to the Upper Midwest will sag southward bringing cooler temperatures to areas to the north, including the city of Chicago. Heavy rains will also be possible along the Texas Gulf Coast from a tropical disturbance. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

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

Mostly Cloudy

82°F

28°C

Humidity 69%
Wind Speed SW 14 mph
Barometer 30.07 in (1016.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Jun 7:51 am CDT
Detailed forecast for

St. Louis County

Today
Hot and humid. Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. High in the upper 90s. Highest heat index readings of around 105 in the late morning and afternoon. Southwest wind around 10 mph.
Tonight
Mostly clear. Low in the mid 70s to lower 80s. Highest heat index readings of around 100 early in the evening. Southwest wind around 10 mph.
Tuesday
Hot and humid. Partly cloudy with a 30 percent chance of showers and thunderstorms. High in the lower 90s. Highest heat index readings of around 100 in the late morning and afternoon. Southwest wind around 10 mph.
Tuesday Night
Partly cloudy with a 30 percent chance of showers and thunderstorms. Low in the lower 70s. Southwest wind around 10 mph in the evening becoming light after midnight.
Wednesday
Partly sunny in the morning then becoming mostly cloudy. A 50 percent chance of showers and thunderstorms. High around 90. West wind around 10 mph in the morning becoming light in the afternoon.
Wednesday Night
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Low around 70.
Thursday
Mostly cloudy. Chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. High in the mid 80s. Chance of rain 60 percent.
Thursday Night
Mostly cloudy with a 40 percent chance of showers and thunderstorms. Low around 70.
Friday
Mostly cloudy with a 30 percent chance of showers and thunderstorms. High in the mid 80s.
Friday Night And Saturday
Partly cloudy. A 20 percent chance of showers and thunderstorms. Low around 70. High in the upper 80s.
Saturday Night
Partly cloudy with a 40 percent chance of showers and thunderstorms. Low around 70.
Sunday
Hot and humid. Partly cloudy with a 20 percent chance of showers and thunderstorms. High in the lower 90s. Heat index readings of around 100.



Click Map For Forecast
751 AM CDT Mon Jun 18 2018
 
 

Additional Resources

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Hourly Weather Forecast

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