Raritan Township Weather Forecast

    • 22
    • 41

    Becoming Sunny

    • 23
    • 40

    Mostly Cloudy

    • 12
    • 31

    Partly Sunny

    • 25
    • 35

    Mostly Cloudy

    • 31
    • 45

    Chance Rain

    • 24
    • 41

    Chance Rain/Snow

Today 6 Dec Hunterdon

Mostly cloudy. Not as cool with Highs in the upper 30s. West Winds around 5 Mph.

Tonight 6 Dec Hunterdon

Mostly clear. Cold with Lows in the lower 20s. West Winds around 5 Mph.

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Raritan Township Temperature Statistics

December Temperature

Somerville, Somerset Airport (12.4 miles)

  • Lowest 4 December, 2025

    21 °F

  • Average December

    32.8 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Somerville, Somerset Airport (12.4 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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