Brooklyn, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Brooklyn, IL in one place.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind 0 to 3 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Brooklyn, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 9:17 PM CDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Brooklyn, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 9:17 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Brooklyn
Sunday looks like the warmest upcoming period in Brooklyn at 95 degrees F.
Thursday Night is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 10 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 9:17 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Southwest wind around 3 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Chance of precipitation is 50%.
Sunny, with a high near 94.
Mostly clear, with a low around 77.
Sunny, with a high near 95.
Mostly clear, with a low around 76.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 76. Chance of precipitation is 20%.
Sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
0 to 3 mph
S
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
3 mph
SW
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
92°F |
2 to 7 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
76°F |
2 to 7 mph
W
|
|
Saturday
Jul 18
|
Sunny
|
94°F |
6 to 9 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
77°F |
5 to 9 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
95°F |
8 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
76°F |
3 to 7 mph
W
|
|
Monday
Jul 20
|
Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
6 to 9 mph
W
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
76°F |
6 to 9 mph
W
|
|
Tuesday
Jul 21
|
Sunny
|
93°F |
6 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brooklyn.