Grayslake Weather Forecast

    • 64
    • 83

    Partly Sunny

    • 53
    • 76

    Chance Rain Showers

    • 46
    • 63

    Chance Rain Showers

    • 46
    • 62

    Slight Chance Rain Showers

    • 43
    • 62

    Slight Chance Rain Showers

    • 38
    • 56

    Chance Rain Showers

Today 26 Sep Lake

Partly cloudy. Breezy. Highs in the lower 80s. Southwest Winds 10 to 15 Mph in the morning becoming south and increasing to 15 to 25 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 26 Sep Lake

Partly cloudy. Breezy. Lows in the mid 60s. Southwest Winds 15 to 25 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grayslake Temperature Statistics

September Temperature

Chicago/Waukegan Regional Airport (10.6 miles)

  • Lowest 19 September, 2020

    41 °F
  • Average September

    63 °F
  • Highest 3 September, 2020

    86 °F

Climate (2010–Present)

Chicago/Waukegan Regional Airport (10.6 miles)

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  • Average Low 2010–Present

    41.7 °F
  • Average 2010–Present

    49.8 °F
  • Average High 2010–Present

    57.7 °F
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