Idyleside Weather Forecast

    • 28
    • 36

    Increasing Clouds

    • 32
    • 36

    Rain

    • 14
    • 47

    Rain

    • 25
    • 26

    Mostly Cloudy

    • 23
    • 43

    Mostly Cloudy

    • 24
    • 34

    Mostly Cloudy

Today 16 Dec Northern Will

Mostly sunny. Highs in the mid 30s. South Winds 5 to 10 Mph, increasing to southwest 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 16 Dec Northern Will

Mostly cloudy. Near steady temperature in the lower 30s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening.

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Idyleside Temperature Statistics

December Temperature

Joliet Regional Airport (2.5 miles)

  • Lowest 5 December, 2025

    -1.1 °F

  • Average December

    22.9 °F

  • Highest 10 December, 2025

    42.1 °F

Climate (2020–Present)

Joliet Regional Airport (2.5 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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