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Sternes Fen Nature Preserve, IL Weather Forecast
Sternes Fen Nature Preserve, IL Weather Forecast Date: 1005 AM CDT Thu Aug 27 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... Partly cloudy. A slight chance of showers in the afternoon. Highs around 80. Northwest winds 5 to 10 mph. Chance of precipitation 20%.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the upper 50s. Northeast winds around 5 mph in the evening, becoming light and variable.
Friday... Mostly sunny in the morning, then becoming partly cloudy. Patchy fog early in the morning. Highs in the lower 80s. Southwest winds around 5 mph.
Friday Night... Partly cloudy. Lows in the lower 60s. South winds around 5 mph.
Saturday... Mostly cloudy. Highs in the upper 70s. South winds 5 to 10 mph.
Saturday Night... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 50%.
Sunday... Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Breezy with highs in the mid 80s. Chance of precipitation 20%.
Sunday Night... Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of precipitation 50%.
Monday... Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the mid 80s. Chance of precipitation 30%.
Monday Night... Mostly cloudy in the evening, then partly cloudy with a chance of showers after midnight. Lows in the lower 70s. Chance of precipitation 40%.
Tuesday... A chance of showers in the morning. Partly cloudy. Highs in the mid 80s. Chance of precipitation 40%.
Tuesday Night... Partly cloudy with a chance of showers. Lows in the upper 60s. Chance of precipitation 40%.
POP = Probability of Precipitation
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