Weather WorldLake Killarney, IL 7-Day Night Weather Forecast
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Lake Killarney, IL Weather Forecast
Lake Killarney, IL Weather Forecast Date: 906 AM CDT Sat Oct 03 2026
The area/counties/county of: Mchenry, including the cities of: Crystal Lake, Algonquin, Mchenry, and Woodstock.or toggle through each period.
Rest of Today... Sunny. Highs in the mid 60s. Southeast winds 5 to 10 mph.
Tonight... Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers after midnight. Lows in the mid 40s. South winds around 5 mph. Chance of precipitation 20%.
Sunday... Mostly sunny. Highs in the upper 60s. Northwest winds 5 to 10 mph.
Sunday Night... Clear. Lows in the lower 40s. Northwest winds around 5 mph.
Monday... Sunny. Highs in the mid 60s. North winds around 5 mph.
Monday Night... Clear. Lows around 40.
Tuesday... Sunny. Highs in the upper 60s.
Tuesday Night... Mostly clear. Lows in the upper 40s.
Wednesday... Mostly sunny. Highs in the lower 70s.
Wednesday Night... Mostly clear. Lows in the upper 40s.
Thursday... Partly cloudy. Highs in the lower 70s.
Thursday Night... Partly cloudy in the evening, then clearing. Lows in the upper 40s.
POP = Probability of Precipitation
Lake Killarney Radar Loop
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