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

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Thunderstorm in Vicinity Heavy Rain Fog/Mist

66°F

19°C

Humidity	93%
Wind Speed	E 7 mph
Barometer	30.01 in (1015.5 mb)
Dewpoint	64°F (18°C)
Visibility	1.50 mi
Last update	18 May 1:54 pm CDT

More Information:

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

Extended Forecast for

Dardenne Prairie MO

Flood Watch May 18, 02:43pm until May 19, 01:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch May 18, 02:43pm until May 19, 01:00pm
NOW until 1:00pm Tue
Flood Watch
This Afternoon
High: 76 °F
T-storms
Tonight
Low: 66 °F
Showers
Likely then
Chance
T-storms
Tuesday
High: 83 °F
Showers then
T-storms
Tuesday Night
Low: 54 °F
Showers
Likely
Wednesday
High: 68 °F
Slight Chance
Showers
Wednesday Night
Low: 50 °F
Mostly Cloudy
Thursday
High: 72 °F
Partly Sunny
Thursday Night
Low: 55 °F
Slight Chance
Showers then
Chance
Showers

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. High near 76. South wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

Tonight

Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 66. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Tuesday

Showers and thunderstorms before 1pm, then showers and possibly a thunderstorm between 1pm and 3pm, then showers and thunderstorms likely after 3pm. High near 83. West wind 9 to 13 mph becoming south in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%.

Tuesday Night

Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 54. North wind 7 to 9 mph. Chance of precipitation is 60%.

Wednesday

A 20 percent chance of showers. Partly sunny, with a high near 68. North wind 7 to 9 mph.

Wednesday Night

Mostly cloudy, with a low around 50.

Thursday

Partly sunny, with a high near 72.

Thursday Night

A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

Friday

Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

Friday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

Sunday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.