Symerton Weather Forecast

    • 19
    • 20

    Increasing Clouds

    • 18
    • 42

    Partly Sunny

    • 21
    • 30

    Partly Sunny

    • 36
    • 39

    Mostly Cloudy

    • 31
    • 48

    Mostly Cloudy

    • 45
    • 50

    Slight Chance Rain

    • 38
    • 62

    Mostly Cloudy

Today 19 Dec Southern Will

Partly cloudy. Blustery. Highs in the lower 20s. Northwest Winds 15 to 20 Mph, becoming west 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 19 Dec Southern Will

Partly cloudy. Lows in the lower 20s. South Winds 5 to 10 Mph, increasing to 15 to 20 Mph with Gusts up to 25 Mph after midnight.

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Symerton Temperature Statistics

December Temperature

Joliet Regional Airport (14.3 miles)

  • Lowest 5 December, 2025

    -1.1 °F

  • Average December

    23.6 °F

  • Highest 17 December, 2025

    42.3 °F

Climate (2020–Present)

Joliet Regional Airport (14.3 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    63 °F
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