Heat Across The Southern U.S.; Storms And Heavy Rain in Central U.S.

The early-season heat across portions of the Southern U.S. will continue for much of this week with more potential record high temperatures. On Tuesday, expect 90s and triple digits from the southern Plains into parts of the Lower Mississippi Valley. Also on Tuesday, strong to severe thunderstorms and locally heavy rainfall will be possible from the central Plains into the Mid Mississippi Valley. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

26°C

79°F

Humidity	42%
Wind Speed	Vrbl 6 km/h
Barometer	1016.8 mb (30.06 in)
Dewpoint	12°C (54°F)
Visibility	16 km
Heat Index	26°C (79°F)
Last update	17 May 9:51 am CDT

More Information:

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

Extended Forecast for

Saint Louis MO

Today

Mostly Sunny
High: 28 °C
Tonight

Mostly Cloudy
then Chance
T-storms
Low: 17 °C
Wednesday

Heavy Rain
then Chance
T-storms
High: 29 °C
Wednesday
Night

Slight Chance
T-storms
Low: 18 °C
Thursday

Slight Chance
T-storms
High: 31 °C
Thursday
Night

Slight Chance
T-storms
Low: 23 °C
Friday

Chance
T-storms
High: 32 °C
Friday
Night

Showers
Likely
Low: 16 °C
Saturday

Showers
Likely
High: 21 °C

Detailed Forecast

Today

Mostly sunny, with a high near 28. South wind 8 to 14 km/h.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 17. South wind 10 to 13 km/h.

Wednesday

Showers and thunderstorms, mainly before 11am. Some of the storms could produce heavy rainfall. High near 29. South wind 13 to 16 km/h becoming west in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 90%.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 18. West wind 8 to 13 km/h becoming light northwest after midnight.

Thursday

A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Light and variable wind becoming south 8 to 13 km/h in the morning. Chance of precipitation is 20%.

Thursday Night

A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 23.

Friday

A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 32.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.

Saturday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.

Saturday Night

Showers likely, mainly before 8pm. Partly cloudy, with a low around 9. Chance of precipitation is 60%.

Sunday

Mostly sunny, with a high near 21.

Sunday Night

Partly cloudy, with a low around 11.

Monday

A 20 percent chance of showers. Partly sunny, with a high near 22.