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.

Overcast

70°F

21°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.11 in (1019.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 5 Aug 1:53 am CDT
Extended Forecast for

Trenton ILSimilar City Names

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Tuesday

    Tuesday: Isolated showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 84 °F

    Patchy Fog
    then Isolated
    T-storms

  • Tuesday Night

    Tuesday Night: Isolated showers and thunderstorms before 7pm, then isolated showers between 7pm and 8pm. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 66. Calm wind.
Tuesday
Isolated showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Isolated showers and thunderstorms before 7pm, then isolated showers between 7pm and 8pm. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 86. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 69. Calm wind.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 73.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton ILSimilar City Names
 38.6°N 89.69°W (Elev. 502 ft)
Last Update:
2:46 am CDT Aug 5, 2025
Forecast Valid:
2am CDT Aug 5, 2025-6pm CDT Aug 11, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation