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.

Light Snow

14°F

-10°C

Humidity 77%
Wind Speed N 14 G 22 mph
Barometer 30.51 in (1033.8 mb)
Dewpoint 8°F (-13°C)
Visibility 5.00 mi
Wind Chill-1°F (-18°C)
Last update 31 Jan 12:53 am CST
Extended Forecast for

2 Miles N Trenton IL

  • Overnight

    Overnight: A chance of flurries before 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 5. North wind around 11 mph, with gusts as high as 22 mph.

    Low: 5 °F

    Chance
    Flurries

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 19 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1. Northwest wind 3 to 8 mph.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the morning.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. South wind 5 to 7 mph becoming southwest after midnight.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A chance of flurries before 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 5. North wind around 11 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 9 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 1. Northwest wind 3 to 8 mph.
Sunday
Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 19. South wind 5 to 7 mph becoming southwest after midnight.
Monday
Mostly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 41.
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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:
9:26 pm CST Jan 30, 2026
Forecast Valid:
1am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation