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.

Fair

93°F

34°C

Humidity 27%
Wind Speed E 9 mph
Barometer 29.94 in (1013.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 15 Jun 5:53 pm CDT
Extended Forecast for

Swansea IL

  • Tonight

    Tonight: Mostly clear, with a low around 72. Southeast wind 6 to 8 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Heat index values as high as 103. South wind 7 to 13 mph.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South wind 6 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Heat index values as high as 101. South wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. South wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Southeast wind 6 to 8 mph.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 103. South wind 7 to 13 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 6 to 10 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Heat index values as high as 101. South wind 6 to 14 mph, with gusts as high as 24 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. South wind 8 to 14 mph, with gusts as high as 22 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 73.
Juneteenth
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Wednesday Night
Mostly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 93.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Swansea IL
 38.55°N 89.98°W (Elev. 551 ft)
Last Update:
5:52 pm CDT Jun 15, 2024
Forecast Valid:
6pm CDT Jun 15, 2024-6pm CDT Jun 22, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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