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 >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

60°F

16°C

Humidity	86%
Wind Speed	Calm
Barometer	30.15 in (1020.8 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	4 Jun 1:53 am CDT

More Information:

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

Extended Forecast for

Cahokia IL

Overnight
Low: 62 °F
Mostly Clear
Thursday
High: 88 °F
Increasing
Clouds
Thursday Night
Low: 68 °F
Partly Cloudy
Friday
High: 89 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 71 °F
Partly Cloudy
then Chance
T-storms
Saturday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 73 °F
Slight Chance
T-storms
Sunday
High: 91 °F
Slight Chance
T-storms then
Chance
T-storms
Sunday Night
Low: 72 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Overnight

Mostly clear, with a low around 62. Calm wind.

Thursday

Increasing clouds, with a high near 88. Light south wind increasing to 5 to 10 mph in the morning.

Thursday Night

Partly cloudy, with a low around 68. South wind 6 to 11 mph.

Friday

A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Friday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 5 to 10 mph.

Saturday

A slight chance of thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 20%.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

Sunday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 91.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Monday

Showers and possibly a thunderstorm. High near 88. Chance of precipitation is 80%.

Monday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

Tuesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.