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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Heavy Rain Fog/Mist

64°F

18°C

Humidity 93%
Wind Speed SW 7 mph
Barometer 29.52 in (999.5 mb)
Dewpoint 62°F (17°C)
Visibility 1.50 mi
Last update 8 Jan 6:53 pm CST
Extended Forecast for

2 Miles E Swansea IL

  • Tonight

    Tonight: Rain and thunderstorms, mainly before 11pm. Low around 48. Breezy, with a south wind 14 to 22 mph becoming west after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%.

    Low: 48 °F

    Rain and
    Breezy then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54. West wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North wind around 5 mph becoming calm.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 46. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 46 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms, mainly before 11pm. Low around 48. Breezy, with a south wind 14 to 22 mph becoming west after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Friday
Partly sunny, with a high near 54. West wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North wind around 5 mph becoming calm.
Saturday
A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 46. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 25. West wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Swansea IL
 38.55°N 89.95°W (Elev. 541 ft)
Last Update:
3:57 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation