10-Day Weather Forecast - Lake Forest, IL

Mostly sunny. Highs in the lower 80s. Northeast winds 5 to 10 mph.

Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph.

Mostly sunny. Highs in the upper 80s inland but only in the mid 80s near the lake. South winds 5 to 10 mph.

Mostly clear through the early overnight then becoming partly cloudy. Lows in the lower 70s. South winds around 5 mph.

Partly cloudy. Highs in the lower 90s. Heat index values up to 105.

Partly 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 30 percent.

Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of precipitation 20 percent.

Mostly cloudy. Lows around 70.

Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.

A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of precipitation 40 percent.

A chance of thunderstorms in the morning. Mostly cloudy with a chance of showers. Highs around 80. Chance of precipitation 30 percent.

Mostly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of precipitation 30 percent.

Partly cloudy. Highs in the mid 70s.

Clear. Low temperature around 63F. Dew point will be around 61F with an average humidity of 86%. Winds will be 7 mph from the NE.

Sunny. High temperature around 76F. Dew point will be around 63F with an average humidity of 74%. Winds will be 7 mph from the NE.

Clear. Low temperature around 62F. Dew point will be around 61F with an average humidity of 85%. Winds will be 4 mph from the NE.

Sunny. High temperature around 78F. Dew point will be around 65F with an average humidity of 74%. Winds will be 2 mph from the N.

Clear. Low temperature around 63F. Dew point will be around 63F with an average humidity of 85%. Winds will be 2 mph from the NW.