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.

Light Rain Fog/Mist

46°F

8°C

Humidity 93%
Wind Speed E 10 mph
Barometer 29.91 in (1013.0 mb)
Dewpoint 44°F (7°C)
Visibility 5.00 mi
Wind Chill41°F (5°C)
Last update 14 Feb 7:53 pm CST
Extended Forecast for

2 Miles N Trenton IL

  • Tonight

    Tonight: Rain, mainly before 5am. Low around 44. East wind around 9 mph. Chance of precipitation is 100%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 58. Northeast wind 6 to 13 mph.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 61. Light south wind increasing to 6 to 11 mph in the morning.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 7 to 9 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. Breezy.

    High: 65 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Breezy.

    Low: 58 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain, mainly before 5am. Low around 44. East wind around 9 mph. Chance of precipitation is 100%.
Sunday
A 20 percent chance of rain before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 58. Northeast wind 6 to 13 mph.
Sunday Night
Mostly clear, with a low around 37. Light and variable wind.
Washington's Birthday
Mostly sunny, with a high near 61. Light south wind increasing to 6 to 11 mph in the morning.
Monday Night
Mostly cloudy, with a low around 44. South wind 7 to 9 mph.
Tuesday
Mostly cloudy, with a high near 65. Breezy.
Tuesday Night
Mostly cloudy, with a low around 58. Breezy.
Wednesday
Mostly sunny, with a high near 70. Breezy.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 69.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 41.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 53.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 49.
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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:
7:06 pm CST Feb 14, 2026
Forecast Valid:
8pm CST Feb 14, 2026-6pm CST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation