NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

81°F

27°C

Humidity	44%
Wind Speed	S 14 G 23 mph
Barometer	29.85 in (1010.0 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	15 May 1:51 pm CDT

More Information:

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

Extended Forecast for

Cool Valley MO

This Afternoon
High: 85 °F
Mostly Sunny
Tonight
Low: 68 °F
Mostly Cloudy
then Chance
T-storms
Saturday
High: 83 °F
T-storms
Likely
Saturday Night
Low: 66 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 90 °F
Sunny
Sunday Night
Low: 71 °F
Mostly Clear
Monday
High: 91 °F
Partly Sunny
then Chance
T-storms
Monday Night
Low: 71 °F
Chance
T-storms
Tuesday
High: 82 °F
Showers
Likely then
T-storms
Likely

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 85. South wind 11 to 13 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 5am. Cloudy during the early evening, then gradual clearing, with a low around 68. South wind 9 to 11 mph, with gusts as high as 21 mph.

Saturday

Showers and thunderstorms likely, mainly between 7am and noon. Mostly cloudy, with a high near 83. West wind 7 to 9 mph becoming south in the afternoon. Chance of precipitation is 70%.

Saturday Night

A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Southeast wind 7 to 9 mph.

Sunday

Sunny, with a high near 90. South wind 9 to 16 mph, with gusts as high as 28 mph.

Sunday Night

Mostly clear, with a low around 71.

Monday

A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91.

Monday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

Tuesday

Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

Tuesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

Wednesday

A 20 percent chance of showers. Partly sunny, with a high near 72.

Wednesday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 56.

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.