Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

63°F

17°C

Humidity 65%
Wind Speed S 15 G 28 mph
Barometer 29.45 in (996.9 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 Mar 8:53 am CDT
Extended Forecast for

5 Miles SSE Troy IL

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

    Today: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4pm.  High near 67. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 80%.

    High: 67 °F

    Isolated
    Showers and
    Breezy then
    T-storms and
    Windy

  • Tonight

    Tonight: Rain before 11pm, then a slight chance of rain and snow between 11pm and midnight, then a chance of snow after midnight. Some thunder is also possible.  Low around 23. Breezy, with a west wind 26 to 28 mph, with gusts as high as 45 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Breezy.
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A slight chance of snow before 1pm, then scattered flurries between 1pm and 3pm.  Cloudy, with a high near 28. Blustery, with a northwest wind 23 to 26 mph, with gusts as high as 39 mph.  Chance of precipitation is 20%.

    High: 28 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Blustery, with a northwest wind 10 to 20 mph.

    Low: 14 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Northwest wind around 6 mph becoming southwest in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after 1am.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 67. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%.
Tonight
Rain before 11pm, then a slight chance of rain and snow between 11pm and midnight, then a chance of snow after midnight. Some thunder is also possible. Low around 23. Breezy, with a west wind 26 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow before 1pm, then scattered flurries between 1pm and 3pm. Cloudy, with a high near 28. Blustery, with a northwest wind 23 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 14. Blustery, with a northwest wind 10 to 20 mph.
Tuesday
Mostly sunny, with a high near 36. Northwest wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Troy IL
 38.65°N 89.86°W (Elev. 469 ft)
9:21 am CDT Mar 15, 2026
9am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
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