National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

64°F

18°C

Humidity 52%
Wind Speed W 12 G 22 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 5 Nov 8:53 am CST
Extended Forecast for

4 Miles S Troy IL

  • Today

    Today: Sunny, with a high near 69. West wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 37. North wind 5 to 8 mph becoming east after midnight.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 52. Southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 72. West wind 9 to 13 mph.

    High: 72 °F

    Chance Rain
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. West wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Tonight
Clear, with a low around 37. North wind 5 to 8 mph becoming east after midnight.
Thursday
Sunny, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 52. Southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Friday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 72. West wind 9 to 13 mph.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 27.
Veterans Day
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Troy IL
 38.68°N 89.92°W (Elev. 574 ft)
Last Update:
6:31 am CST Nov 5, 2025
Forecast Valid:
9am CST Nov 5, 2025-6pm CST Nov 11, 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