Rahway Weather Forecast

    • 62
    • 83

    Slight Chance Rain Showers

    • 60
    • 85

    Mostly Sunny

    • 56
    • 74

    Mostly Sunny

    • 59
    • 73

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 63
    • 82

    Partly Sunny

Today 18 Sep Eastern Union

Patchy fog this morning. Partly sunny with a slight chance of Showers this Morning, then sunny this afternoon. Highs in the lower 80s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Sep Eastern Union

Mostly clear. Lows in the lower 60s. West Winds around 5 Mph.

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Rahway Temperature Statistics

September Temperature

Linden Airport (1.9 miles)

  • Lowest 8 September, 2025

    54.3 °F

  • Average September

    69.4 °F

  • Highest 6 September, 2025

    88.9 °F

Climate (2020–Present)

Linden Airport (1.9 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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