Direct from the National Weather Service

The Lake County IL 7 Day Weather Forecast

Special Alert
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Flood watch in effect from Monday evening through late Tuesday night.
Tonight
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Partly cloudy until early morning then becoming cloudy. A 20 percent chance of showers after midnight. Blustery. Temperatures nearly steady in the upper 30s. South winds 15 to 25 miles per hour with gusts up to 30 miles per hour in the evening decreasing to 10 to 15 miles per hour after midnight.
Washingtons Birthday
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Showers and a slight chance of thunderstorms. Areas of fog. Highs in the lower 50s. South winds 10 to 15 miles per hour. Chance of precipitation 90 percent.
Monday Night
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Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the lower 40s. Then temperatures becoming steady or slowly rising. Southwest winds 10 to 15 miles per hour. Chance of precipitation 90 percent.
Tuesday
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Showers and a slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs in the upper 50s. South winds 10 to 15 miles per hour. Chance of precipitation 90 percent.
Tuesday Night
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Cloudy. Rain in the evening, then a chance of light rain, light freezing rain and light sleet after midnight. No ice accumulation. Lows in the upper 20s. West winds 10 to 15 miles per hour in the evening becoming northwest after midnight. Chance of precipitation 80 percent.
Wednesday
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Partly sunny. Highs in the lower 30s.
Wednesday Night
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Mostly cloudy. Lows in the lower 20s.
Thursday
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Partly sunny. Highs in the upper 30s.
Thursday Night
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Partly cloudy. Lows in the upper 20s.
Friday
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Mostly cloudy. Chance of rain and snow in the morning. Highs in the lower 40s. Chance of precipitation 50 percent.
Friday Night
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Mostly cloudy. Chance of rain and snow in the evening, then snow and rain likely after midnight. Lows in the lower 30s. Chance of precipitation 60 percent.
Saturday
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Mostly cloudy. Chance of rain and snow in the morning. Highs in the mid 40s. Chance of precipitation 30 percent.
Saturday Night
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Mostly cloudy. A 50 percent chance of rain in the evening. Lows around 30.