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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.

Light Rain

78°F

26°C

Humidity 74%
Wind Speed S 7 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 May 12:53 pm CDT
Extended Forecast for

4 Miles SSE Smithton IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 84. South wind around 8 mph.

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind 6 to 8 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 9 to 17 mph, with gusts as high as 26 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 69. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 89. South wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Tuesday

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

    High: 88 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 84. South wind around 8 mph.
Tonight
Partly cloudy, with a low around 66. South wind 6 to 8 mph.
Sunday
Sunny, with a high near 87. South wind 9 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Increasing clouds, with a low around 69. South wind 11 to 15 mph, with gusts as high as 23 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 89. South wind 14 to 18 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 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Tuesday
Showers and possibly a thunderstorm. High near 88. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Wednesday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 71.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 54.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Smithton IL
 38.37°N 89.96°W (Elev. 410 ft)
Last Update:
1:26 pm CDT May 16, 2026
Forecast Valid:
1pm CDT May 16, 2026-6pm CDT May 22, 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