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Brighton, IL Weather Forecast

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Brighton, IL Weather Forecast

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Brighton IL weather - Clear - 55°F
Clear
55°F
Updated 7:47 am
Feels Like 54°F
Humidity 93%
Wind N 6 mph
Barometer  30.26 in
Dew Point 53°F
Brighton IL weather - Clear - 13°C
Clear
13°C
Updated 7:47 am
Feels Like 12°C
Humidity 93%
Wind N 10 km/h
Barometer  102.5 kPa
Dew Point 12°C
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Brighton Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Brighton, IL Weather - Today Partly Sunny Brighton, IL Weather - Tonight Partly Cloudy Brighton, IL Weather - Thursday Partly Sunny Brighton, IL Weather - Thursday Night Mostly Cloudy Brighton, IL Weather - Friday Partly Sunny Brighton, IL Weather - Friday Night Partly Cloudy Brighton, IL Weather - Saturday Chance Of Showers Brighton, IL Weather - Saturday Night Chance Of T-Storm Brighton, IL Weather - Sunday Partly Sunny Brighton, IL Weather - Sunday Night Partly Cloudy Brighton, IL Weather - Monday Partly Cloudy Brighton, IL Weather - Monday Night Chance Of Showers
Partly Sunny Partly Cloudy Partly Sunny Mostly Cloudy Partly Sunny Partly Cloudy Chance of Showers Chance of T-Storm Partly Sunny Partly Cloudy Partly Cloudy Chance of Showers
Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
 Lo: 59°FLo: 15°C Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
 Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C		 Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C		 Lo: 61°FLo: 16°C
POP: 20% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 533 AM CDT Wed Sep 23 2026 Brighton, IL Weather - WeatherWorld.com

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Issued: 626 AM CDT Wed Sep 23 2026

Key Messages

  • Seasonably cool temperatures are expected to continue through the end of the week.
  • Rain chances return to the area this weekend into next week.

Aviation

/12Z TAFS THROUGH 18Z THURSDAY/... Issued at 625 AM CDT Wed Sep 23 2026

Widespread low stratus is moving west through southern IL and will cause MVFR ceilings to impact the St. Louis metro and UIN terminals during the morning hours, but should raise to VFR by the afternoon. These low clouds are expected to stall just west of the Mississ...