Union Weather Forecast

    • 36
    • 55

    Decreasing Clouds

    • 27
    • 50

    Mostly Sunny

    • 29
    • 52

    Mostly Sunny

    • 37
    • 59

    Partly Sunny

    • 47
    • 67

    Partly Sunny

    • 45
    • 70

    Mostly Sunny

Today 6 Apr Hunterdon

Sunny. Highs in the mid 50s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 6 Apr Hunterdon

Mostly cloudy with a slight chance of Showers in the Evening, then partly cloudy after midnight. Lows in the mid 30s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

April Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 2 April, 2026

    41 °F

  • Average April

    55.6 °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

    43.1 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.7 °F
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