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

33°F

1°C

Humidity 75%
Wind Speed Calm
Barometer 29.74 in (1007.2 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 25 Feb 6:53 am CST
Extended Forecast for

2 Miles N Trenton IL

  • Today

    Today: Mostly cloudy, with a high near 51. North wind around 5 mph becoming calm in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 34. Calm wind becoming northeast around 6 mph in the evening.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 7am. Partly sunny, then gradually becoming sunny, with a high near 52. East wind around 6 mph becoming light and variable.

    High: 52 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Light south wind.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. Light south wind becoming southwest 6 to 11 mph in the morning.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 51. North wind around 5 mph becoming calm in the afternoon.
Tonight
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 34. Calm wind becoming northeast around 6 mph in the evening.
Thursday
A 20 percent chance of rain before 7am. Partly sunny, then gradually becoming sunny, with a high near 52. East wind around 6 mph becoming light and variable.
Thursday Night
Mostly clear, with a low around 33. Light south wind.
Friday
Sunny, with a high near 67. Light south wind becoming southwest 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 32.
Sunday
A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Sunday Night
Rain likely before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 30.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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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:
5:26 am CST Feb 25, 2026
Forecast Valid:
7am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
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