Rockdale Weather Forecast

    • 30
    • 48

    Mostly Cloudy

    • 41
    • 44

    Rain Likely

    • 43
    • 48

    Chance Rain

    • 39
    • 53

    Mostly Cloudy

    • 28
    • 54

    Mostly Cloudy

    • 15
    • 34

    Mostly Sunny

Today 23 Dec Northern Will

Mostly cloudy. Highs in the upper 40s. West Winds 5 to 10 Mph.

Tonight 23 Dec Northern Will

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 30. North Winds around 5 Mph, becoming northeast after midnight.

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Rockdale Temperature Statistics

December Temperature

Joliet Regional Airport (3.1 miles)

  • Lowest 5 December, 2025

    -1.1 °F

  • Average December

    24.8 °F

  • Highest 18 December, 2025

    51.8 °F

Climate (2020–Present)

Joliet Regional Airport (3.1 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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