Union Weather Forecast

    • 27
    • 44

    Snow Showers

    • 27
    • 40

    Increasing Clouds

    • 33
    • 45

    Partly Sunny

    • 33
    • 48

    Chance Rain

    • 21
    • 39

    Chance Rain/Snow

    • 20
    • 32

    Partly Sunny

    • 23
    • 37

    Mostly Cloudy

Today 11 Jan Hunterdon

Mostly sunny with scattered rain or snow Showers. Little or no snow accumulation. Highs in the mid 40s. Temperature falling into the upper 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 50 percent.

Tonight 11 Jan Hunterdon

Partly cloudy with isolated snow Showers this Evening, then mostly clear after midnight. Cold with Lows in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 20 percent.

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Union Temperature Statistics

January Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 3 January, 2026

    12 °F

  • Average January

    31.8 °F

  • Highest 8 January, 2026

    52 °F

Climate (2021–Present)

Somerville, Somerset Airport (14.9 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.7 °F
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