10-Day Weather Forecast - Grayslake, IL
- 89|74°FPartly CloudyHourly details
Today
89°FMostly cloudy in the morning then becoming partly cloudy. Humid. Highs in the upper 80s. Southwest winds 5 to 10 mph.
Tonight
74°FPartly cloudy in the evening then becoming mostly cloudy. A slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds around 5 mph. Chance of precipitation 40 percent.
- 90|69°F50% Chance of StormsHourly details
Day
90°FMostly cloudy in the morning then clearing. A chance of showers and thunderstorms. Humid with highs around 90. Southwest winds 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation 50 percent. Heat index values up to 102.
Night
69°FMostly clear in the evening then becoming partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows around 70. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent.
- 78|62°FPartly CloudyHourly details
Day
78°FPartly cloudy in the morning then clearing. Highs in the lower 80s inland but only in the upper 70s near the lake. North winds 10 to 15 mph.
Night
62°FMostly clear. Lows in the lower 60s.
- 78|61°FSunnyHourly details
Day
78°FSunny. Highs in the upper 70s.
Night
61°FMostly clear. Lows in the lower 60s.
- 81|66°FPartly CloudyHourly details
Day
81°FPartly cloudy. Highs in the mid 80s.
Night
66°FPartly cloudy in the evening then mostly cloudy with a chance of showers after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
- 75|66°F40% Chance Rain ShowersHourly details
Day
75°FMostly cloudy with a chance of showers. Highs in the mid 80s. Chance of precipitation 40 percent.
Night
66°FPartly cloudy with a chance of showers in the evening then mostly cloudy after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
Weekend Weather
- 77|65°FPartly Cloudy
Day
77°FPartly cloudy. Highs in the mid 80s.
Night
65°FMostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 65F. Dew point will be around 64F with an average humidity of 87%. Winds will be 4 mph from the N.
- 79|65°FSunny
Day
79°FSunny with widely scattered thunderstorms. Chance of storms 25%. High temperature around 79F. Dew point will be around 66F with an average humidity of 75%. Winds will be 3 mph from the NE.
Night
65°FClear. Low temperature around 65F. Dew point will be around 63F with an average humidity of 84%. Winds will be 2 mph from the E.
- 80|67°FSunny
Day
80°FSunny. High temperature around 80F. Dew point will be around 66F with an average humidity of 73%. Winds will be 3 mph from the S.
Night
67°FMostly clear. Low temperature around 67F. Dew point will be around 64F with an average humidity of 79%. Winds will be 4 mph from the S.
- 80|64°F30% Chance of Rain
Day
80°FPartly cloudy with a 35% chance for rain and thunderstorms. High temperature around 80F. Dew point will be around 67F with an average humidity of 72%. Winds will be 4 mph from the SW.
Night
64°FPartly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 64F. Dew point will be around 63F with an average humidity of 80%. Winds will be 3 mph from the NW.













