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.

Overcast

67°F

19°C

Humidity 76%
Wind Speed S 6 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 5 Jun 5:53 am CDT
Extended Forecast for

Swansea IL

  • Today

    Today: Mostly sunny, with a high near 88. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 90. West wind 6 to 9 mph becoming south in the morning.

    High: 90 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 72 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 86. Calm wind becoming southeast 5 to 9 mph in the morning.  Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

    Low: 72 °F

    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 85. Chance of precipitation is 80%.

    High: 85 °F

    Showers then
    T-storms

  • Monday Night

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

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 88. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 71. South wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 90. West wind 6 to 9 mph becoming south in the morning.
Saturday Night
Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm after midnight.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86. Calm wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 85. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 95.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Swansea IL
 38.55°N 89.98°W (Elev. 551 ft)
5:51 am CDT Jun 5, 2026
6am CDT Jun 5, 2026-6pm CDT Jun 11, 2026
 
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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