South Plainfield Weather Forecast

    • 27
    • 33

    Increasing Clouds

    • 23
    • 42

    Partly Sunny

    • 9
    • 32

    Mostly Cloudy

    • 10
    • 18

    Snow

    • 13
    • 18

    Snow Likely

    • 7
    • 25

    Slight Chance Snow

Today 21 Jan Middlesex

Sunny this Morning, then becoming partly sunny. Not as cool with Highs in the mid 30s. South Winds 5 to 10 Mph.

Tonight 21 Jan Middlesex

Mostly cloudy in the Evening, then becoming partly cloudy. Not as cold. Near steady temperature in the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Plainfield Temperature Statistics

January Temperature

Linden Airport (8.7 miles)

  • Lowest 19 January, 2026

    19.4 °F

  • Average January

    35.1 °F

  • Highest 9 January, 2026

    53.1 °F

Climate (2021–Present)

Linden Airport (8.7 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    63.9 °F
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