Union Weather Forecast

    • 56
    • 69

    Partly Sunny

    • 50
    • 72

    Rain Showers Likely

    • 38
    • 69

    Rain Showers

    • 35
    • 55

    Partly Sunny

    • 27
    • 51

    Slight Chance Rain Showers

    • 33
    • 54

    Mostly Sunny

Today 3 Apr Hunterdon

Mostly cloudy. Much warmer with Highs in the upper 60s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 3 Apr Hunterdon

Mostly cloudy. Patchy fog after midnight. Not as cool with Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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Union Temperature Statistics

April Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 1 April, 2026

    53.1 °F

  • Average April

    68.7 °F

  • Highest 1 April, 2026

    80.1 °F

Climate (2021–Present)

Somerville, Somerset Airport (14.9 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.7 °F
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