Back Lake, IL Weather Forecast

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Back Lake, IL Weather Forecast

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Back Lake IL weather  - Sunny - 59°F
Sunny
59°F
Updated 7:16 am
Feels Like 64°F
Humidity 100%
Wind E 5 mph
Barometer  30.27 in
Dew Point 59°F
Back Lake IL weather  - Sunny - 15°C
Sunny
15°C
Updated 7:16 am
Feels Like 18°C
Humidity 100%
Wind E 8 km/h
Barometer  102.5 kPa
Dew Point 15°C

Back Lake Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Back Lake, IL Weather - Today Cloudy Back Lake, IL Weather - Tonight Mostly Cloudy Back Lake, IL Weather - Saturday Partly Sunny Back Lake, IL Weather - Saturday Night Mostly Cloudy Back Lake, IL Weather - Sunday Partly Sunny Back Lake, IL Weather - Sunday Night Clearing Back Lake, IL Weather - Monday Mostly Clear Back Lake, IL Weather - Monday Night Mostly Clear Back Lake, IL Weather - Tuesday Chance Of Showers Back Lake, IL Weather - Tuesday Night Showers Back Lake, IL Weather - Wednesday Showers Back Lake, IL Weather - Wednesday Night Chance Of Showers
Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy Partly Sunny Clearing Mostly Clear Mostly Clear Chance of Showers Showers Showers Chance of Showers
Hi: 69°FHi: 21°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C
Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C
Hi: 75°FHi: 24°C
Hi: 75°FHi: 24°C
Lo: 61°FLo: 16°C
Hi: 75°FHi: 24°C
Lo: 61°FLo: 16°C
Lo: 61°FLo: 16°C
POP: 40% POP: 70% POP: 70% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Fri Sep 25 2026 Back Lake, IL Weather - WeatherWorld.com

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Issued: 459 AM CDT Fri Sep 25 2026

Key Messages

  • Quiet through Midday Tuesday: Expect stable conditions across Central Illinois with highs in the upper 60s to mid-70s and only occasional sprinkles.
  • Warming Trend Midweek: Temperatures and humidity will rise Wednesday and Thursday, pushing high temperatures near 80F.
  • Heavy Rain Potential Wednesday-Friday: The primary weather hazard arrives Wednesday through Friday as a system bringing tropical moisture moves in. There is a 20-40% chance for rainfall to exceed 2 inches across our area...