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 Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

73°F

23°C

Humidity	74%
Wind Speed	S 6 mph
Barometer	29.98 in (1014.8 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	23 May 4:53 pm CDT

More Information:

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

Extended Forecast for

2 Miles SE Swansea IL

Tonight
Low: 63 °F
Slight Chance
T-storms then
Chance
T-storms
Sunday
High: 81 °F
Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 62 °F
Partly Cloudy
Memorial Day
High: 82 °F
Mostly Cloudy
Monday Night
Low: 65 °F
Mostly Cloudy
then Chance
Showers
Tuesday
High: 80 °F
Showers
Tuesday Night
Low: 67 °F
Showers
Likely
Wednesday
High: 83 °F
Chance
T-storms then
Showers
Likely
Wednesday Night
Low: 67 °F
Chance
T-storms

Detailed Forecast

Tonight

A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 63. Calm wind.

Sunday

A 40 percent chance of showers and thunderstorms, mainly before noon. Partly sunny, with a high near 81. Light north wind.

Sunday Night

Partly cloudy, with a low around 62. Light east wind.

Memorial Day

Mostly cloudy, with a high near 82. Calm wind becoming east 5 to 7 mph in the afternoon.

Monday Night

A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening.

Tuesday

Showers, with thunderstorms also possible after 10am. High near 80. Chance of precipitation is 80%.

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 67. Chance of precipitation is 70%.

Wednesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

Thursday

A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.

Thursday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Friday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.

Friday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 61.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 79.