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

40°F

4°C

Humidity 63%
Wind Speed E 8 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 14 Mar 7:53 am CDT
Extended Forecast for

Brooklyn IL

  • Today

    Today: Mostly sunny, with a high near 65. East wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Southeast wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain after 1pm. High near 69. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    High: 69 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then rain and snow between 10pm and 1am, then a chance of snow after 1am. Low around 22. Blustery, with a southwest wind 17 to 24 mph becoming northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 29. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 39 mph.

    High: 29 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 65. East wind 7 to 13 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 56. Southeast wind 9 to 14 mph, with gusts as high as 25 mph.
Sunday
A chance of rain and thunderstorms, then rain after 1pm. High near 69. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then rain and snow between 10pm and 1am, then a chance of snow after 1am. Low around 22. Blustery, with a southwest wind 17 to 24 mph becoming northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 29. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 39 mph.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IL
 38.64°N 90.17°W (Elev. 400 ft)
Last Update:
7:31 am CDT Mar 14, 2026
Forecast Valid:
8am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation