Union Weather Forecast

    • 57
    • 78

    Slight Chance Rain Showers

    • 63
    • 83

    Partly Sunny

    • 63
    • 87

    Chance Rain Showers

    • 62
    • 87

    Mostly Cloudy

    • 56
    • 81

    Slight Chance Rain Showers

    • 54
    • 81

    Chance Rain Showers

Today 13 Apr Hunterdon

Partly sunny with a 30 percent chance of Showers. Much warmer. Near steady temperature in the mid 70s. Southwest Winds around 15 Mph with Gusts up to 30 Mph.

Tonight 13 Apr Hunterdon

Mostly clear. Not as cool with Lows in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

April Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    50 °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

    54.2 °F

  • Average High 2021–2026

    65.7 °F
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