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

65°F

18°C

Humidity	73%
Wind Speed	NE 5 mph
Barometer	30.14 in (1020.5 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	20 May 8:53 pm CDT

More Information:

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

Extended Forecast for

2 Miles E O'Fallon IL

Tonight
Low: 54 °F
Clearing
Thursday
High: 71 °F
Partly Sunny
Thursday Night
Low: 58 °F
Mostly Cloudy
then Slight
Chance
Showers
Friday
High: 72 °F
Showers
Friday Night
Low: 60 °F
Chance
Showers
Saturday
High: 80 °F
Partly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 62 °F
Chance
T-storms
Sunday
High: 80 °F
Chance
Showers then
Chance
T-storms
Sunday Night
Low: 62 °F
Chance
Showers

Detailed Forecast

Tonight

Cloudy early, then clearing, with a low around 54. Northeast wind 5 to 8 mph.

Thursday

Partly sunny, with a high near 71. East wind around 9 mph.

Thursday Night

A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 58. East wind around 8 mph.

Friday

Showers, mainly after 7am. High near 72. East wind around 10 mph. Chance of precipitation is 90%.

Friday Night

A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60. East wind 5 to 7 mph becoming light and variable after midnight.

Saturday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.

Saturday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

Sunday

A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Memorial Day

A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.