Split Rock Lake, IL Weather Forecast

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Split Rock Lake, IL Weather Forecast

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Split Rock Lake IL weather  - Clear - 51°F
Clear
51°F
Updated 3:03 am
Feels Like 54°F
Humidity 100%
Wind N 0 mph
Barometer  30.05 in
Dew Point 51°F
Split Rock Lake IL weather  - Clear - 11°C
Clear
11°C
Updated 3:03 am
Feels Like 12°C
Humidity 100%
Wind N 0 km/h
Barometer  101.7 kPa
Dew Point 11°C

Split Rock Lake Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Split Rock Lake, IL Weather - Rest Of Tonight Patchy Fog Split Rock Lake, IL Weather - Tuesday Patchy Fog Split Rock Lake, IL Weather - Tuesday Night Chance Of Showers Split Rock Lake, IL Weather - Wednesday Showers Split Rock Lake, IL Weather - Wednesday Night Chance Of T-Storm Split Rock Lake, IL Weather - Thursday Chance Of T-Storm Split Rock Lake, IL Weather - Thursday Night Showers Split Rock Lake, IL Weather - Friday Chance Of Showers Split Rock Lake, IL Weather - Friday Night Partly Cloudy Split Rock Lake, IL Weather - Saturday Partly Cloudy Split Rock Lake, IL Weather - Saturday Night Mostly Cloudy Split Rock Lake, IL Weather - Sunday Partly Cloudy
Patchy Fog Patchy Fog Chance of Showers Showers Chance of T-Storm Chance of T-Storm Showers Chance of Showers Partly Cloudy Partly Cloudy Mostly Cloudy Partly Cloudy
Lo: 50°FLo: 10°C Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 75°FHi: 24°C
Lo: 69°FLo: 21°C Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C Hi: 69°FHi: 21°C
POP: 40% POP: 70% POP: 50% POP: 90% POP: 90% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 120 AM CDT Tue Sep 29 2026 Split Rock Lake, IL Weather - WeatherWorld.com

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Split Rock Lake Forecast Discussion

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Issued: 1259 AM CDT Tue Sep 29 2026

Key Messages

  • More fog possible late tonight into early Tuesday morning, some may become locally dense.
  • Widespread rain is likely across the region in the late Wednesday through Thursday night time frame.

Discussion

... Issued at 240 PM CDT Mon Sep 28 2026

Surface high pressure remains dominant across the Great Lakes region tonight into Tuesday. Light winds and mainly clear skies tonight will facilitate additional fog development (locally dense in spots) late tonight into early Tuesday morning as air...