Brussels, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Brussels, IL in one place.
Sunny, with a high near 93. Heat index values as high as 102. West wind 6 to 9 mph.
Local Weather Overview
This forecast page for Brussels, 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 17, 2026 7:44 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Brussels, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 7:44 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Brussels
Monday looks like the warmest upcoming period in Brussels at 95 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 12 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 7:44 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 slight chance of showers and thunderstorms between 10pm and 2am. Partly cloudy, with a low around 75. Heat index values as high as 101. West wind 3 to 9 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. North wind around 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Chance of precipitation is 30%.
Sunny, with a high near 95.
Mostly clear, with a low around 78.
Sunny, with a high near 95.
Mostly clear, with a low around 70.
Sunny, with a high near 86.
Partly cloudy, with a low around 64.
Mostly sunny, with a high near 85.
Partly cloudy, with a low around 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
93°F |
6 to 9 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
75°F |
3 to 9 mph
W
|
|
Sunday
Jul 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
5 mph
N
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
5 mph
E
|
|
Monday
Jul 20
|
Sunny
|
95°F |
2 to 6 mph
S
|
|
Monday Night
Jul 20
|
Mostly Clear
|
78°F |
8 mph
SW
|
|
Tuesday
Jul 21
|
Sunny
|
95°F |
8 to 12 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
70°F |
7 to 12 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
86°F |
7 to 10 mph
N
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
64°F |
2 to 8 mph
NE
|
|
Thursday
Jul 23
|
Mostly Sunny
|
85°F |
2 to 6 mph
NE
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
67°F |
2 to 6 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brussels.
Nearby forecast pages are not available for this location yet.