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

65°F

18°C

Humidity 78%
Wind Speed S 13 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 2 Apr 4:53 am CDT
Extended Forecast for

2 Miles SE Cahokia IL

Wind Advisory April 2, 12:00pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a steady temperature around 62. South wind around 14 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 77. Breezy, with a south wind 17 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 80%.

    High: 77 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 64. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms and
    Breezy then
    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 82. South wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 59. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

    Low: 59 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. Chance of precipitation is 70%.

    High: 60 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 62. South wind around 14 mph, with gusts as high as 25 mph.
Thursday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 77. Breezy, with a south wind 17 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 64. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 82. South wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm. Low around 59. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
Last Update:
4:31 am CDT Apr 2, 2026
Forecast Valid:
5am CDT Apr 2, 2026-6pm CDT Apr 8, 2026
 
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