Illinois Beach State Park Weather Forecast

    • 22
    • 40

    Clearing Late

    • 24
    • 26

    Mostly Cloudy

    • 31
    • 33

    Snow

    • 18
    • 39

    Partly Sunny

    • 25
    • 30

    Chance Snow

    • 22
    • 35

    Snow Likely

    • 17
    • 31

    Partly Sunny

Today 3 Feb Lake

Patchy fog late in the morning. Cloudy. Highs in the lower 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph late in the Morning, increasing to 10 to 20 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 3 Feb Lake

Mostly cloudy until early Morning, then becoming partly cloudy. Lows in the lower 20s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Illinois Beach State Park Temperature Statistics

February Temperature

Chicago/Waukegan Regional Airport (2.5 miles)

  • Lowest 1 February, 2025

    27 °F

  • Average February

    30 °F

  • Highest 1 February, 2025

    33.1 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.3 °F
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