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.

Fog/Mist

62°F

17°C

Humidity 90%
Wind Speed SW 6 mph
Barometer 30.03 in (1016.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Dec 1:53 am CST
Extended Forecast for

East St. Louis IL

  • Overnight

    Overnight: Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 53. West wind 3 to 5 mph.

    Low: 53 °F

    Patchy Dense
    Fog

  • Christmas Day

    Christmas Day: Patchy dense fog before noon. Otherwise, cloudy, with a high near 66. Calm wind becoming east around 5 mph in the afternoon.

    High: 66 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. East wind 5 to 7 mph becoming southwest after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight. Cloudy, with a low around 58.

    Low: 58 °F

    Cloudy then
    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain, then rain likely and possibly a thunderstorm after noon. Cloudy, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.

    Low: 21 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 53. West wind 3 to 5 mph.
Christmas Day
Patchy dense fog before noon. Otherwise, cloudy, with a high near 66. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 58. East wind 5 to 7 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 71. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 47. Light and variable wind.
Saturday
Mostly cloudy, with a high near 68.
Saturday Night
A 20 percent chance of rain after midnight. Cloudy, with a low around 58.
Sunday
A chance of rain, then rain likely and possibly a thunderstorm after noon. Cloudy, with a high near 68. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Monday
Sunny, with a high near 29.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East St. Louis IL
 38.62°N 90.12°W (Elev. 413 ft)
Last Update:
2:01 am CST Dec 25, 2025
Forecast Valid:
2am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
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