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.

Overcast

33°F

1°C

Humidity 58%
Wind Speed N 8 mph
Barometer 30.22 in (1023.6 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 21 Feb 10:53 am CST
Extended Forecast for

2 Miles N Trenton IL

  • Today

    Today: A 20 percent chance of snow before noon. Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 9 to 11 mph.

    High: 41 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Mostly clear, with a low around 22. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 31. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 31 mph.

    High: 31 °F

    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 33. Northwest wind 8 to 17 mph, with gusts as high as 24 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of snow before noon. Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 9 to 11 mph.
Tonight
Mostly clear, with a low around 22. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 31. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 16. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 33. Northwest wind 8 to 17 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Trenton IL
 38.63°N 89.69°W (Elev. 502 ft)
Last Update:
11:01 am CST Feb 21, 2026
Forecast Valid:
11am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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