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 Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Thunderstorm Light Rain Fog/Mist

67°F

19°C

Humidity	93%
Wind Speed	N 6 mph
Barometer	29.98 in (1015.0 mb)
Dewpoint	65°F (18°C)
Visibility	3.00 mi
Last update	18 May 11:53 am CDT

More Information:

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

Extended Forecast for

5 Miles NW Lebanon IL

Flood Watch May 18, 12:15pm until May 18, 07:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch May 18, 12:15pm until May 18, 07:00pm
NOW until 7:00pm Mon
Flood Watch
This Afternoon
High: 78 °F
T-storms
Tonight
Low: 67 °F
Showers
Likely then
Partly Cloudy
Tuesday
High: 85 °F
Showers
Likely then
T-storms
Tuesday Night
Low: 58 °F
Showers
Wednesday
High: 70 °F
Slight Chance
Showers
Wednesday Night
Low: 52 °F
Mostly Cloudy
Thursday
High: 73 °F
Partly Sunny
Thursday Night
Low: 57 °F
Mostly Cloudy
then Chance
Showers

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. High near 78. South wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

Tonight

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Tuesday

Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 85. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

Tuesday Night

Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 58. North wind 7 to 9 mph. Chance of precipitation is 80%.

Wednesday

A 20 percent chance of showers. Partly sunny, with a high near 70. North wind 8 to 10 mph.

Wednesday Night

Mostly cloudy, with a low around 52.

Thursday

Partly sunny, with a high near 73.

Thursday Night

A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57.

Friday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.

Friday Night

A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 61.

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

Sunday

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