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

45°F

7°C

Humidity 40%
Wind Speed SW 13 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 21 Jan 10:53 am CST
Extended Forecast for

2 Miles N Trenton IL

  • Today

    Today: Sunny, with a high near 47. West wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 22. Southwest wind 6 to 13 mph becoming northwest in the evening. Winds could gust as high as 23 mph.

    Low: 22 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 38. West wind 3 to 5 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Light and variable wind becoming north 12 to 17 mph after midnight. Winds could gust as high as 25 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 14. North wind 14 to 18 mph.

    High: 14 °F

    Cold

  • Friday Night

    Friday Night: Cloudy, with a low around 2.

    Low: 2 °F

    Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy and cold, with a high near 13.

    High: 13 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 20.

    High: 20 °F

    Slight Chance
    Snow then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 47. West wind 10 to 15 mph, with gusts as high as 23 mph.
Tonight
Increasing clouds, with a low around 22. Southwest wind 6 to 13 mph becoming northwest in the evening. Winds could gust as high as 23 mph.
Thursday
Mostly sunny, with a high near 38. West wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 9. Light and variable wind becoming north 12 to 17 mph after midnight. Winds could gust as high as 25 mph.
Friday
Mostly cloudy and cold, with a high near 14. North wind 14 to 18 mph.
Friday Night
Cloudy, with a low around 2.
Saturday
A 50 percent chance of snow. Cloudy and cold, with a high near 13.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 8.
Sunday
A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 20.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Sunny, with a high near 22.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 34.
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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:
10:57 am CST Jan 21, 2026
Forecast Valid:
11am CST Jan 21, 2026-6pm CST Jan 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