Passaic River County Park Weather Forecast

    • 22
    • 41

    Decreasing Clouds

    • 12
    • 30

    Partly Sunny

    • 26
    • 35

    Mostly Cloudy

    • 31
    • 45

    Chance Rain

    • 26
    • 42

    Chance Rain/Snow

    • 20
    • 37

    Chance Rain/Snow

    • 18
    • 33

    Slight Chance Snow

Today 7 Dec Somerset

Patchy freezing fog this morning. Partly sunny. Highs in the lower 40s. Northwest Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 7 Dec Somerset

Partly cloudy this Evening, then clearing. Cold with Lows in the lower 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Passaic River County Park Temperature Statistics

December Temperature

Somerville, Somerset Airport (9.3 miles)

  • Lowest 5 December, 2025

    19 °F

  • Average December

    31.3 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Somerville, Somerset Airport (9.3 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    65.8 °F
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