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.

Fog/Mist

70°F

21°C

Humidity	97%
Wind Speed	SW 3 mph
Barometer	29.98 in (1014.8 mb)
Dewpoint	69°F (21°C)
Visibility	4.00 mi
Last update	27 May 7:53 am CDT

More Information:

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

Extended Forecast for

3 Miles SE Swansea IL

Today
High: 81 °F
Chance
Showers then
Chance
T-storms
Tonight
Low: 64 °F
Mostly Cloudy
then Patchy
Fog
Thursday
High: 84 °F
Partly Sunny
Thursday Night
Low: 64 °F
Mostly Cloudy
Friday
High: 79 °F
Slight Chance
Showers
Friday Night
Low: 62 °F
Mostly Cloudy
then Slight
Chance
Showers
Saturday
High: 82 °F
Slight Chance
Showers
Saturday Night
Low: 62 °F
Partly Cloudy
Sunday
High: 79 °F
Mostly Sunny

Detailed Forecast

Today

A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

Tonight

Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.

Thursday

Partly sunny, with a high near 84. Light northeast wind becoming east 5 to 9 mph in the morning.

Thursday Night

Mostly cloudy, with a low around 64. East wind around 7 mph.

Friday

A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 79. East wind 6 to 8 mph.

Friday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 82.