Union Weather Forecast

    • 40
    • 57

    Increasing Clouds

    • 41
    • 69

    Rain Showers

    • 28
    • 49

    Chance Rain Showers

    • 32
    • 49

    Partly Sunny

    • 34
    • 53

    Slight Chance Rain

    • 39
    • 54

    Rain Likely

Today 21 Mar Hunterdon

Areas of dense fog this morning. Mostly sunny. Visibility one quarter mile or less at Times this morning. Highs in the upper 50s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Mar Hunterdon

Mostly cloudy. Lows around 40. East Winds around 5 Mph, becoming southeast around 5 Mph after midnight.

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Union Temperature Statistics

March Temperature

Somerville, Somerset Airport (14.9 miles)

  • Lowest 2 March, 2026

    19.9 °F

  • Average March

    43.6 °F

  • Highest 10 March, 2026

    82 °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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