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.

Fair

57°F

14°C

Humidity 47%
Wind Speed E 10 mph
Barometer 30.29 in (1025.9 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Apr 4:53 pm CDT
Extended Forecast for

Brooklyn IL

  • Tonight

    Tonight: Partly cloudy, with a low around 42. East wind 6 to 9 mph.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Southeast wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. South wind 7 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60. South wind around 8 mph.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 76.

    High: 76 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. East wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 75. Southeast wind 6 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 55. South wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 80. South wind 7 to 10 mph.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60. South wind around 8 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 76.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 82. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IL
 38.64°N 90.17°W (Elev. 400 ft)
Last Update:
1:26 pm CDT Apr 7, 2026
Forecast Valid:
5pm CDT Apr 7, 2026-6pm CDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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