Weather in Lake Forest, Illinois, United States

7-Day Detailed Weather Forecast for Lake Forest

Today

Temperature: 75°F

Wind Speed: 5 to 20 mph

Wind Direction: SSE

Forecast: Widespread fog before 10am. Partly sunny, with a high near 75. South southeast wind 5 to 20 mph, with gusts as high as 30 mph.

Tonight

Temperature: 43°F

Wind Speed: 15 to 20 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms between 7pm and 9pm, then showers and thunderstorms. Cloudy. Low around 43, with temperatures rising to around 49 overnight. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

Temperature: 50°F

Wind Speed: 15 mph

Wind Direction: WNW

Forecast: A slight chance of rain showers before 10am. Partly sunny, with a high near 50. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night

Temperature: 35°F

Wind Speed: 10 to 15 mph

Wind Direction: WNW

Forecast: Mostly clear, with a low around 35. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday

Temperature: 49°F

Wind Speed: 10 to 15 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 49. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Temperature: 34°F

Wind Speed: 5 to 10 mph

Wind Direction: N

Forecast: Areas of frost after 1am. Mostly clear, with a low around 34.

Monday

Temperature: 52°F

Wind Speed: 5 to 10 mph

Wind Direction: E

Forecast: Areas of frost before 8am. Sunny, with a high near 52.

Monday Night

Temperature: 44°F

Wind Speed: 10 mph

Wind Direction: SSE

Forecast: Mostly cloudy, with a low around 44.

Tuesday

Temperature: 71°F

Wind Speed: 10 to 15 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 71.

Tuesday Night

Temperature: 48°F

Wind Speed: 5 to 10 mph

Wind Direction: W

Forecast: Partly cloudy, with a low around 48.

Wednesday

Temperature: 57°F

Wind Speed: 5 to 10 mph

Wind Direction: N

Forecast: Sunny, with a high near 57.

Wednesday Night

Temperature: 49°F

Wind Speed: 5 mph

Wind Direction: SE

Forecast: Partly cloudy, with a low around 49.

Thursday

Temperature: 69°F

Wind Speed: 5 to 10 mph

Wind Direction: SSE

Forecast: Mostly sunny, with a high near 69.

Thursday Night

Temperature: 54°F

Wind Speed: 10 mph

Wind Direction: SSE

Forecast: A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 54.