Brussels, IL Weather Forecast

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Brussels, IL Weather Forecast

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Brussels IL weather  - Clear - 94°F
Clear
94°F
Updated 12:18 pm
Feels Like 115°F
Humidity 44%
Wind WSW 10 mph
Barometer  29.97 in
Dew Point 69°F
Brussels IL weather  - Clear - 34°C
Clear
34°C
Updated 12:18 pm
Feels Like 46°C
Humidity 44%
Wind WSW 16 km/h
Barometer  101.4 kPa
Dew Point 21°C

Brussels Weather Forecast

THIS AFTERNOON TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY TUESDAY NIGHT WEDNESDAY
Brussels, IL Weather - This Afternoon Sunny Brussels, IL Weather - Tonight Mostly Clear Brussels, IL Weather - Friday Sunny Brussels, IL Weather - Friday Night Chance Of T-Storm Brussels, IL Weather - Saturday Sunny Brussels, IL Weather - Saturday Night Mostly Clear Brussels, IL Weather - Sunday Mostly Clear Brussels, IL Weather - Sunday Night Mostly Clear Brussels, IL Weather - Monday Mostly Clear Brussels, IL Weather - Tuesday Mostly Clear Brussels, IL Weather - Tuesday Night Mostly Clear Brussels, IL Weather - Wednesday Chance Of T-Storm
Sunny Mostly Clear Sunny Chance of T-Storm Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Chance of T-Storm
Hi: 99°FHi: 37°C
Lo: 75°FLo: 24°C Hi: 99°FHi: 37°C
Lo: 75°FLo: 24°C Hi: 95°FHi: 35°C
Hi: 91°FHi: 33°C
Lo: 71°FLo: 22°C
Hi: 91°FHi: 33°C
Lo: 71°FLo: 22°C
Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C
Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C
Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C
Lo: 71°FLo: 22°C Hi: 95°FHi: 35°C
POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1103 AM CDT Thu Sep 03 2026 Brussels, IL Weather - WeatherWorld.com

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Issued: 449 AM CDT Thu Sep 3 2026

Key Messages

  • An Extreme Heat Warning is now effect until Saturday evening as the dangerous late season heatwave continues.
  • Temperatures are forecast to "cool" slightly Sunday into Labor Day before another period of near-record breaking heat returns by the middle of next week.

Aviation

/06Z TAFS THROUGH 12Z FRIDAY/... Issued at 446 AM CDT Thu Sep 3 2026

Mainly dry and VFR conditions are expected through the period. Light winds will turn out of the southwest less than 10 knots this morning.


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