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

43°F

6°C

Humidity 60%
Wind Speed N 18 G 28 mph
Barometer 30.23 in (1023.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 23 Mar 2:53 am CDT
Extended Forecast for

2 Miles N Trenton IL

  • Overnight

    Overnight: Mostly clear, with a low around 35. North wind around 15 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 54. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 54 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. East wind around 7 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Southeast wind 6 to 9 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Southeast wind 3 to 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 35. North wind around 15 mph, with gusts as high as 26 mph.
Monday
Increasing clouds, with a high near 54. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 36. East wind around 7 mph.
Tuesday
Mostly sunny, with a high near 60. Southeast wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 40. Southeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Sunny, with a high near 86.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 51.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 62.
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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:
2:51 am CDT Mar 23, 2026
Forecast Valid:
3am CDT Mar 23, 2026-6pm CDT Mar 29, 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