Union Weather Forecast

    • 56
    • 80

    Becoming Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

    • 66
    • 83

    Rain Showers Likely

    • 62
    • 84

    Chance Rain Showers

    • 60
    • 82

    Partly Sunny

Today 23 Aug Hunterdon

Mostly sunny. Near steady temperature in the upper 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 23 Aug Hunterdon

Mostly clear. Isolated Showers and Thunderstorms this evening. Lows in the upper 50s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

August Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 4 August, 2026

    57.9 °F

  • Average August

    74.6 °F

  • Highest 7 August, 2026

    91.9 °F

Climate (2021–2026)

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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