Raritan River - Sayreville Weather Forecast

    • 53
    • 74

    Rain Showers

    • 52
    • 75

    Mostly Sunny

    • 55
    • 76

    Slight Chance Rain Showers

    • 54
    • 73

    Mostly Cloudy

    • 58
    • 81

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

Today 7 Sep Middlesex

Showers. Not as warm with Highs in the mid 70s. Northwest Winds around 5 Mph. Chance of rain 90 percent.

Tonight 7 Sep Middlesex

Partly cloudy in the Evening, then clearing. Lows in the lower 50s. West Winds around 5 Mph, becoming north after midnight.

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Raritan River - Sayreville Temperature Statistics

September Temperature

Linden Airport (11.2 miles)

  • Lowest 3 September, 2025

    59.7 °F

  • Average September

    70.6 °F

  • Highest 5 September, 2025

    87.1 °F

Climate (2020–Present)

Linden Airport (11.2 miles)

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  • Average Low 2020–2025

    48.2 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    64 °F
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