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Glacial County Park, IL 7-Day Night Weather Forecast
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Glacial County Park, IL Weather Forecast
Glacial County Park, IL Weather Forecast Date: 341 AM CDT Sun Aug 23 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... Clear. Temperatures in the upper 50s. Northwest winds around 5 mph.
Today... Sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. Northwest winds 5 to 10 mph.
Tonight... Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.
Monday... Partly cloudy. Highs in the mid 70s. Northwest winds around 5 mph.
Monday Night... Mostly clear. Lows in the mid 50s. East winds around 5 mph, becoming southwest after midnight.
Tuesday... Partly cloudy. Highs in the upper 70s. Southwest winds around 5 mph.
Tuesday Night... Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of precipitation 20%.
Wednesday... Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 50%.
Wednesday Night... Partly cloudy in the evening, then clearing. Lows in the lower 60s.
Thursday... Mostly sunny in the morning, then becoming partly cloudy. Highs around 80.
Thursday Night... Mostly clear. Lows in the upper 50s.
Friday... Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.
Friday Night... Partly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
Glacial County Park Radar Loop
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