Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

65°F

18°C

Humidity 63%
Wind Speed N 3 mph
Barometer 30.22 in (1023.2 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 4 Oct 9:53 am CDT
Extended Forecast for

Swansea IL

  • Today

    Today: Sunny, with a high near 80. North wind 3 to 8 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North wind 5 to 7 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Northeast wind around 6 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48. Light southeast wind.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind becoming south around 6 mph in the morning.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 80. North wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 52. North wind 5 to 7 mph.
Monday
Sunny, with a high near 75. Northeast wind around 6 mph.
Monday Night
Clear, with a low around 48. Light southeast wind.
Tuesday
Sunny, with a high near 79. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Clear, with a low around 57.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 59.
Saturday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Swansea IL
 38.55°N 90.01°W (Elev. 548 ft)
8:21 am CDT Oct 4, 2026
10am CDT Oct 4, 2026-6pm CDT Oct 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database