Grayslake Weather Forecast

    • 39
    • 59

    Rain Showers

    • 34
    • 55

    Partly Sunny

    • 32
    • 50

    Partly Sunny

    • 35
    • 57

    Sunny

    • 48
    • 63

    Rain Showers Likely

    • 40
    • 59

    Chance Rain Showers

Today 18 Apr Lake

Mostly cloudy. A chance of Showers late in the Morning, then Showers in the afternoon. Highs in the upper 50s Inland, but only in the mid 50s near the lake. Northeast Winds 5 to 10 Mph. Chance of precipitation 90 percent.

Tonight 18 Apr Lake

Showers in the evening. Lows in the upper 30s. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph after midnight. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grayslake Temperature Statistics

April Temperature

Chicago/Waukegan Regional Airport (10.6 miles)

  • Lowest 6 April, 2024

    30.8 °F

  • Average April

    48.8 °F

  • Highest 14 April, 2024

    77 °F

Climate (2019–Present)

Chicago/Waukegan Regional Airport (10.6 miles)

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  • Average Low 2019–2024

    41.9 °F

  • Average 2019–2024

    50.4 °F

  • Average High 2019–2024

    58.5 °F
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