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 36%
Wind Speed SE 15 mph
Barometer 29.87 in (1011.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 14 Mar 4:53 pm CDT
Extended Forecast for

4 Miles SSE Waterloo IL

Wind Advisory March 15, 10:00am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Increasing clouds, with a low around 55. South wind 9 to 17 mph, with gusts as high as 28 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain and thunderstorms before 3pm, then rain likely and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 66. Breezy, with a south wind 22 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    High: 66 °F

    Breezy.
    Slight Chance
    Rain then
    Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then a chance of snow between 10pm and 3am. Low around 21. Breezy, with a west wind 25 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Breezy.
    Rain/Snow
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 29. Blustery, with a northwest wind 21 to 28 mph, with gusts as high as 40 mph.

    High: 29 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 55. South wind 9 to 17 mph, with gusts as high as 28 mph.
Sunday
A chance of rain and thunderstorms before 3pm, then rain likely and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 66. Breezy, with a south wind 22 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then a chance of snow between 10pm and 3am. Low around 21. Breezy, with a west wind 25 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 29. Blustery, with a northwest wind 21 to 28 mph, with gusts as high as 40 mph.
Monday Night
Mostly clear, with a low around 14. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 39.
Tuesday Night
A slight chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Waterloo IL
 38.28°N 90.13°W (Elev. 656 ft)
Last Update:
1:56 pm CDT Mar 14, 2026
Forecast Valid:
5pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
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