Weather in Crystal Lake, Illinois, United States

7-Day Detailed Weather Forecast for Crystal Lake

This Afternoon

Temperature: 84°F

Wind Speed: 15 mph

Wind Direction: SSW

Forecast: Mostly sunny, with a high near 84. South southwest wind around 15 mph, with gusts as high as 25 mph.

Tonight

Temperature: 73°F

Wind Speed: 10 to 15 mph

Wind Direction: S

Forecast: A slight chance of rain showers before 8pm. Partly cloudy, with a low around 73. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Saturday

Temperature: 94°F

Wind Speed: 15 to 25 mph

Wind Direction: SSW

Forecast: Sunny, with a high near 94. Heat index values as high as 106. South southwest wind 15 to 25 mph, with gusts as high as 45 mph.

Saturday Night

Temperature: 77°F

Wind Speed: 15 to 25 mph

Wind Direction: SW

Forecast: Mostly clear, with a low around 77. Heat index values as high as 106. Southwest wind 15 to 25 mph, with gusts as high as 40 mph.

Sunday

Temperature: 95°F

Wind Speed: 15 to 20 mph

Wind Direction: SW

Forecast: Sunny, with a high near 95. Southwest wind 15 to 20 mph, with gusts as high as 35 mph.

Sunday Night

Temperature: 77°F

Wind Speed: 10 to 20 mph

Wind Direction: SSW

Forecast: Clear, with a low around 77.

Monday

Temperature: 96°F

Wind Speed: 10 to 15 mph

Wind Direction: SW

Forecast: Sunny, with a high near 96.

Monday Night

Temperature: 75°F

Wind Speed: 5 to 15 mph

Wind Direction: WSW

Forecast: A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 75.

Tuesday

Temperature: 91°F

Wind Speed: 5 to 10 mph

Wind Direction: W

Forecast: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 91.

Tuesday Night

Temperature: 65°F

Wind Speed: 5 to 10 mph

Wind Direction: ESE

Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

Wednesday

Temperature: 89°F

Wind Speed: 5 to 10 mph

Wind Direction: SSW

Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 89.

Wednesday Night

Temperature: 67°F

Wind Speed: 5 to 10 mph

Wind Direction: SSW

Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

Thursday

Temperature: 86°F

Wind Speed: 5 to 10 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 86.

Thursday Night

Temperature: 66°F

Wind Speed: 5 to 10 mph

Wind Direction: SSW

Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.