Direct from the National Weather Service

The Lake County IL 7 Day Weather Forecast

Today
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Partly cloudy early in the morning then becoming sunny. Highs in the mid 70s. West winds 10 to 20 miles per hour with gusts up to 30 miles per hour.
Tonight
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Mostly clear in the evening, then partly cloudy with a 20 percent chance of showers and thunderstorms after midnight. Lows in the lower 50s. North winds 5 to 10 miles per hour in the evening becoming northeast after midnight.
Friday
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Mostly cloudy. Chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s inland. But only in the upper 60s near the lake. Southeast winds 10 to 15 miles per hour. Chance of precipitation 50 percent.
Friday Night
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Cloudy. Chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows around 60. South winds 5 to 10 miles per hour. Chance of precipitation 60 percent.
Saturday
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Mostly cloudy. Showers likely and a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80 inland. But only in the mid 70s near the lake. Southwest winds 10 to 15 miles per hour. Chance of precipitation 60 percent.
Saturday Night
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Partly cloudy. Chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 50s. Chance of precipitation 30 percent.
Sunday
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Partly sunny. A 30 percent chance of showers and thunderstorms in the morning. Highs in the lower 70s inland. But only in the mid 60s near the lake.
Sunday Night
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Partly cloudy. A 30 percent chance of showers and thunderstorms after midnight. Lows in the lower 50s.
Memorial Day
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Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs in the mid 70s inland. But only in the upper 60s near the lake.
Monday Night And Tuesday
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Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s inland. But only around 70 near the lake.
Tuesday Night
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Mostly cloudy. Chance of showers and thunderstorms in the evening, then showers likely and a chance of thunderstorms after midnight. Lows in the mid 50s. Chance of precipitation 60 percent.
Wednesday
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Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs around 70.