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Frazier Park, IL Weather Forecast
Frazier Park, IL Weather Forecast Date: 801 AM CDT Sat Sep 12 2026
The area/counties/county of: Mchenry, including the cities of: Crystal Lake, Algonquin, Mchenry, and Woodstock.or toggle through each period.
Today... Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon.
Tonight... Partly cloudy in the evening, then becoming mostly clear. Less humid with lows in the mid 50s. Northwest winds around 5 mph.
Sunday... Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers in the afternoon. Highs around 70. North winds 5 to 10 mph. Chance of precipitation 40%.
Sunday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 40s. North winds around 5 mph.
Monday... Partly cloudy in the morning, then becoming mostly cloudy. A slight chance of showers in the afternoon. Highs in the lower 70s. East winds 5 to 10 mph, increasing to southeast 10 to 15 mph in the afternoon. Chance of precipitation 20%.
Monday Night... Mostly cloudy. A chance of showers and thunderstorms after midnight. Breezy and not as cool. Near steady temperature in the mid 60s. Chance of precipitation 50%.
Tuesday... Mostly cloudy with a slight chance of thunderstorms. Showers likely, mainly in the morning. Highs around 80. Chance of precipitation 60%.
Tuesday Night... Showers likely. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of precipitation 70%.
Wednesday... Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 90%.
Wednesday Night... Showers likely. Lows around 60. Chance of precipitation 70%.
Thursday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 70s. Chance of precipitation 40%.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s.
POP = Probability of Precipitation
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