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.

Mostly Cloudy

73°F

23°C

Humidity 74%
Wind Speed S 10 G 18 mph
Barometer 29.68 in (1004.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 11 Mar 2:53 am CDT
Extended Forecast for

Brooklyn IL

  • Overnight

    Overnight: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Low around 61. Southwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Some of the storms could produce heavy rainfall. Temperature falling to around 48 by 4pm. Southwest wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.

    High: 65 °F⇓

    Heavy Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 33 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 56. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. South wind 9 to 17 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Low around 61. Southwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Some of the storms could produce heavy rainfall. Temperature falling to around 48 by 4pm. Southwest wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 56. Calm wind becoming southwest 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 45. South wind 9 to 17 mph, with gusts as high as 30 mph.
Friday
Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 55.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 67. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IL
 38.64°N 90.17°W (Elev. 400 ft)
Last Update:
3:01 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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