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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

66°F

19°C

Humidity 84%
Wind Speed S 12 G 28 mph
Barometer 29.54 in (1000.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 8 Jan 7:53 pm CST
Extended Forecast for

Trenton IL

  • Tonight

    Tonight: Rain likely and possibly a thunderstorm before 10pm, then a chance of rain and thunderstorms between 10pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Breezy, with a south wind 16 to 25 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 54. West wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 26 mph.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North wind around 5 mph becoming calm.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 45 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely and possibly a thunderstorm before 10pm, then a chance of rain and thunderstorms between 10pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Breezy, with a south wind 16 to 25 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%.
Friday
Mostly cloudy, with a high near 54. West wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North wind around 5 mph becoming calm.
Saturday
A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 6 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton IL
 38.6°N 89.69°W (Elev. 502 ft)
Last Update:
3:57 pm CST Jan 8, 2026
Forecast Valid:
8pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
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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