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

69°F

21°C

Humidity 30%
Wind Speed S 10 G 24 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 2:53 pm CDT
Extended Forecast for

2 Miles N Trenton IL

Red Flag Warning until March 29, 07:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until March 29, 07:00pm

    NOW until 7:00pm Sun

    Red Flag Warning

  • This Afternoon

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. South wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 81. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 81 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. South wind around 16 mph, with gusts as high as 28 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 83. Breezy, with a south wind 16 to 23 mph, with gusts as high as 30 mph.

    High: 83 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 68. South wind 11 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. South wind 9 to 11 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 81. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 64. South wind around 16 mph, with gusts as high as 28 mph.
Tuesday
A 20 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 83. Breezy, with a south wind 16 to 23 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Wednesday
Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.
Thursday
Rain. High near 67. Breezy. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 72.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 56.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 70%.
Saturday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 61.
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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:
2:56 pm CDT Mar 29, 2026
Forecast Valid:
3pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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