Raritan River - South River Entrance Weather Forecast

    • 23
    • 45

    Decreasing Clouds

    • 28
    • 39

    Mostly Cloudy

    • 33
    • 45

    Rain Likely

    • 29
    • 43

    Mostly Cloudy

    • 35
    • 44

    Chance Rain

    • 33
    • 52

    Slight Chance Rain

Today 21 Dec Middlesex

Mostly sunny. Highs in the mid 40s. Temperature falling into the upper 30s in the afternoon. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Dec Middlesex

Mostly clear in the Evening, then becoming partly cloudy. Cold with Lows in the lower 20s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Real-Time

Raritan River - South River Entrance Temperature Statistics

December Temperature

Linden Airport (11.8 miles)

  • Lowest 9 December, 2025

    16.7 °F

  • Average December

    32.5 °F

  • Highest 18 December, 2025

    50.4 °F

Climate (2020–Present)

Linden Airport (11.8 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    64 °F
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