Brighton, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Brighton, IL in one place.
Sunny, with a high near 95. Southwest wind 7 to 10 mph.
Local Weather Overview
This forecast page for Brighton, 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: Oct 12, 2026 3:52 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Brighton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 3:52 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Brighton
Tuesday looks like the warmest upcoming period in Brighton at 95 degrees F.
Friday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Friday at about 20 to 23 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 3:52 AM 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 after 1am. Partly cloudy, with a low around 70. Southwest wind 3 to 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 100%.
Showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 80%.
Showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 80%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 63. Chance of precipitation is 20%.
Mostly clear, with a low around 37.
Sunny, with a high near 62.
Clear, with a low around 37.
Sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
95°F |
7 to 10 mph
SW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Chance Showers And Thunderstorms
|
70°F |
3 to 7 mph
SW
|
|
Wednesday
Oct 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
82°F |
6 mph
W
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms
|
64°F |
5 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
80°F |
6 to 12 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
50°F |
10 to 20 mph
NW
|
|
Friday
Oct 16
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
63°F |
20 to 23 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
37°F |
6 to 20 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
62°F |
6 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
5 mph
SE
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
5 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brighton.
