Weather Alert
Grayslake High School Weather Warning NWS WEATHER ALERT FOR THE GRAYSLAKE HIGH SCHOOL, IL AREA - Issued: 1055 AM CDT Sun Aug 23 2026 Grayslake High School Weather Warning

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Grayslake High School, IL Weather - Hour by Hour Forecast

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Grayslake High School, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 59°F15°C, dew point 56°F13°C, humidity 89%. Wind direction is NW at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 30.04 in1017 mb.
Rest of Today - Sunny late in the morning, then becoming partly cloudy. Highs in the mid 70s. North winds 5 to 10 mph... Full Forecast
Tonight - Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph... Full Forecast

Grayslake High School Hourly Weather

24 Hour Forecast Scroll
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Grayslake High School, IL Hourly Weather - Partly Cloudy - 12:00 PM Grayslake High School, IL Hourly Weather - Partly Cloudy - 1:00 PM Grayslake High School, IL Hourly Weather - Partly Cloudy - 2:00 PM Grayslake High School, IL Hourly Weather - Mostly Cloudy - 3:00 PM Grayslake High School, IL Hourly Weather - Mostly Cloudy - 4:00 PM Grayslake High School, IL Hourly Weather - Mostly Cloudy - 5:00 PM Grayslake High School, IL Hourly Weather - Partly Cloudy - 6:00 PM Grayslake High School, IL Hourly Weather - Partly Cloudy - 7:00 PM Grayslake High School, IL Hourly Weather - Partly Cloudy - 8:00 PM Grayslake High School, IL Hourly Weather - Clear - 9:00 PM Grayslake High School, IL Hourly Weather - Clear - 10:00 PM Grayslake High School, IL Hourly Weather - Clear - 11:00 PM Grayslake High School, IL Hourly Weather - Clear - 12:00 AM Grayslake High School, IL Hourly Weather - Clear - 1:00 AM Grayslake High School, IL Hourly Weather - Clear - 2:00 AM Grayslake High School, IL Hourly Weather - Clear - 3:00 AM Grayslake High School, IL Hourly Weather - Clear - 4:00 AM Grayslake High School, IL Hourly Weather - Clear - 5:00 AM Grayslake High School, IL Hourly Weather - Clear - 6:00 AM Grayslake High School, IL Hourly Weather - Clear - 7:00 AM Grayslake High School, IL Hourly Weather - Clear - 8:00 AM Grayslake High School, IL Hourly Weather - Clear - 9:00 AM Grayslake High School, IL Hourly Weather - Clear - 10:00 AM Grayslake High School, IL Hourly Weather - Clear - 11:00 AM
Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
72°F22°C 73°F23°C 73°F23°C 73°F23°C 73°F23°C 72°F22°C 70°F21°C 69°F21°C 67°F19°C 64°F18°C 62°F17°C 61°F16°C 60°F16°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 59°F15°C 59°F15°C 60°F16°C 64°F18°C 67°F19°C 71°F22°C 72°F22°C
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1% 1% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 2% 2% 2% 2%
54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 55°F13°C 55°F13°C 55°F13°C 54°F12°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 54°F12°C 54°F12°C 54°F12°C
53% 51% 51% 51% 51% 53% 57% 59% 63% 73% 78% 81% 81% 83% 83% 83% 83% 80% 80% 78% 67% 63% 55% 53%
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9 mph 9 mph 9 mph 8 mph 8 mph 8 mph 4 mph 4 mph 4 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 1 mph 1 mph 1 mph 4 mph 4 mph 4 mph
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Hour (CDT)
Weather
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Temperature
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Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KUGN model statistics.

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Prob Precip % = Probability of Precipitation.

Grayslake High School 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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