National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 29.87 in (1011.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 May 1:53 am CDT
Extended Forecast for

4 Miles SE Belleville IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. South wind around 7 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 89. South wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 89 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers between 4am and 5am. Increasing clouds, with a low around 71. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. South wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 90%.

    High: 87 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. South wind around 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 89. South wind 9 to 18 mph, with gusts as high as 28 mph.
Sunday Night
A slight chance of showers between 4am and 5am. Increasing clouds, with a low around 71. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. South wind 13 to 15 mph, with gusts as high as 24 mph.
Tuesday
Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 59. Chance of precipitation is 80%.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 71.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Belleville IL
 38.5°N 89.93°W (Elev. 499 ft)
Last Update:
1:26 am CDT May 17, 2026
Forecast Valid:
2am CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation