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.

Mostly Cloudy

21°F

-6°C

Humidity 54%
Wind Speed W 18 G 25 mph
Barometer 30.22 in (1024.0 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 17 Jan 3:53 pm CST
Extended Forecast for

2 Miles N Trenton IL

  • This Afternoon

    This Afternoon: A chance of flurries. Mostly cloudy and cold, with a steady temperature around 20. West wind around 14 mph, with gusts as high as 23 mph.

    High: 20 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries before 11pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 13. West wind 5 to 15 mph, with gusts as high as 22 mph.

    Low: 13 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries before 2pm, then a slight chance of snow between 2pm and 3pm, then a chance of flurries after 3pm. Increasing clouds, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 32 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Partly cloudy, with a low around 12. Blustery, with a southwest wind 11 to 20 mph becoming northwest after midnight. Winds could gust as high as 29 mph.

    Low: 12 °F

    Partly Cloudy
    then Mostly
    Clear and
    Blustery

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 20. Blustery, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon.

    High: 20 °F

    Sunny and
    Blustery then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of flurries. Mostly cloudy and cold, with a steady temperature around 20. West wind around 14 mph, with gusts as high as 23 mph.
Tonight
A chance of flurries before 11pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 13. West wind 5 to 15 mph, with gusts as high as 22 mph.
Sunday
A chance of flurries before 2pm, then a slight chance of snow between 2pm and 3pm, then a chance of flurries after 3pm. Increasing clouds, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday Night
A chance of flurries before 9pm. Partly cloudy, with a low around 12. Blustery, with a southwest wind 11 to 20 mph becoming northwest after midnight. Winds could gust as high as 29 mph.
M.L.King Day
Sunny and cold, with a high near 20. Blustery, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 23.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 43.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 31.
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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:
5:01 pm CST Jan 17, 2026
Forecast Valid:
5pm CST Jan 17, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation