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Johnsburg High School, IL Weather Forecast
Johnsburg High School, IL Weather Forecast Date: 251 AM CDT Sat Oct 31 2026
The area/counties/county of: Mchenry, including the cities of: Crystal Lake, Algonquin, Mchenry, and Woodstock.or toggle through each period.
Early This Morning... Cloudy. Isolated showers late, then scattered showers late. Temperatures around 50. East winds around 5 mph. Chance of precipitation 40%.
Today... Cloudy. Scattered showers until late afternoon, then isolated showers late. Highs around 60. Southeast winds 5 to 10 mph. Chance of precipitation 50%.
Tonight... Cloudy. A slight chance of showers in the evening. Lows in the upper 40s. Southeast winds around 5 mph. Chance of precipitation 20%.
Sunday... Mostly cloudy. Highs in the mid 60s. Southeast winds around 5 mph.
Sunday Night... Mostly cloudy. Lows in the lower 50s. Southeast winds 5 to 10 mph.
Monday... Cloudy. A chance of showers. Highs in the mid 60s. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Chance of precipitation 50%.
Monday Night... Cloudy. A chance of showers in the evening, then showers likely after midnight. Nearly steady temperatures around 60. Chance of precipitation 70%.
Tuesday... Showers, breezy with highs around 70. Chance of precipitation 80%.
Tuesday Night... Showers likely. Lows in the lower 50s. Chance of precipitation 70%.
Wednesday... Mostly cloudy with a 50% chance of showers. Highs in the mid 60s.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s.
Thursday... Partly cloudy with a 30% chance of showers. Highs in the mid 60s.
Thursday Night... Mostly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
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