Union Weather Forecast

    • 43
    • 60

    Partly Sunny

    • 47
    • 74

    Increasing Clouds

    • 46
    • 64

    Chance Rain Showers

    • 42
    • 50

    Rain Showers Likely

    • 40
    • 60

    Slight Chance Rain Showers

    • 44
    • 65

    Chance Rain Showers

    • 48
    • 62

    Rain Showers Likely

Today 22 Apr Hunterdon

Mostly cloudy. Highs around 60. East Winds around 5 Mph.

Tonight 22 Apr Hunterdon

Partly cloudy. Patchy fog after midnight. Lows in the lower 40s. East Winds around 5 Mph, becoming north after midnight.

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Union Temperature Statistics

April Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    54.9 °F

  • Highest 16 April, 2026

    90 °F

Climate (2021–Present)

Somerville, Somerset Airport (14.9 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.7 °F
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