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 Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

77°F

25°C

Humidity	62%
Wind Speed	S 13 mph
Barometer	29.88 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	17 May 11:15 pm CDT

More Information:

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

Extended Forecast for

South Roxana IL

Overnight
Low: 71 °F
Partly Cloudy
Monday
High: 85 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 70 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 85 °F
Showers
Likely then
T-storms
Tuesday Night
Low: 57 °F
Showers
Likely
Wednesday
High: 70 °F
Mostly Cloudy
Wednesday Night
Low: 51 °F
Mostly Cloudy
Thursday
High: 73 °F
Partly Sunny
Thursday Night
Low: 57 °F
Mostly Cloudy
then Slight
Chance
Showers

Detailed Forecast

Overnight

Partly cloudy, with a low around 71. South wind 9 to 13 mph, with gusts as high as 22 mph.

Monday

A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 85. South wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

Monday Night

A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 5am. Partly cloudy, with a low around 70. South wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Tuesday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 85. South wind 11 to 16 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

Tuesday Night

Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. Northwest wind 8 to 10 mph. Chance of precipitation is 70%.

Wednesday

Mostly cloudy, with a high near 70.

Wednesday Night

Mostly cloudy, with a low around 51.

Thursday

Partly sunny, with a high near 73.

Thursday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57.

Friday

A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.