Current Conditions

Grayslake, Illinois

65°F18°C
Partly Cloudy

Wind

SW 4 mph7 km/h

Humidity

72%

Cloud Cover

96%

As of Friday, July 24, 2026 at 3:06 AM CDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Breezy from the S at 5 to 7 mph8 to 11 km/h.

Night

Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 6 to 7 mph10 to 12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24Partly CloudyHigh 78°F26°CLow 65°F18°CPrecip 0 in0 mmCloud 64%Wind S 6 mph9 km/hFriday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Breezy from the S at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 6 to 7 mph10 to 12 km/h.
SaturdayJul 25DrizzleHigh 81°F27°CFeels 84°F29°CLow 66°F19°CPrecip 0.01 in0.2 mm13%Cloud 51%Wind SW 7 mph12 km/hSaturday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F20°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 13% chance of drizzle. Humid. Saturday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 7 mph11 km/h.
SundayJul 26ShowersHigh 88°F31°CFeels 94°F35°CLow 73°F23°CPrecip 0.07 in1.7 mm19%Cloud 60%Wind SW 7 mph11 km/hSunday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C — feels like 95°F35°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 13% chance of drizzle in the afternoon. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 19% chance of showers in the evening.
MondayJul 27ShowersHigh 86°F30°CFeels 93°F34°CLow 75°F24°CPrecip 0.3 in7.5 mm32%Cloud 47%Wind SW 7 mph12 km/hMonday: Partly cloudy and hot, with a high of 86°F30°C and morning low of 75°F24°C — feels like 93°F34°C. Breezy from the SW at 7 mph12 km/h. 32% chance of showers throughout the day. Heavy, humid air. Monday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 32% chance of showers throughout the night.
TuesdayJul 28ShowersHigh 81°F27°CFeels 84°F29°CLow 73°F23°CPrecip 0.08 in2.1 mm24%Cloud 32%Wind NNE 9 mph14 km/hTuesday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 73°F23°C. Breezy from the NNE at 9 to 10 mph15 to 16 km/h. 12% chance of drizzle throughout the day. Humid. Tuesday Night: Partly cloudy, with a low around 73°F23°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. 24% chance of showers throughout the night.
WednesdayJul 29ClearHigh 81°F27°CLow 69°F21°CPrecip 0.02 in0.5 mm4%Cloud 16%Wind NE 7 mph11 km/hWednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h. Wednesday Night: Mostly clear, with a low around 69°F21°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h.
ThursdayJul 30ClearHigh 85°F29°CLow 70°F21°CPrecip 0.03 in0.8 mm9%Cloud 32%Wind SSE 6 mph10 km/hThursday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 71°F22°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h. Thursday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the SSE around 6 mph10 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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PatternExampleDescription
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Coordinates: 42.3445°N, 88.0417°W·Elevation: 239m·Timezone: America/Chicago·Population: 20,915