Bethlehem Weather Forecast

    • 47
    • 72

    Increasing Clouds

    • 44
    • 62

    Chance Rain Showers

    • 41
    • 47

    Rain Showers Likely

    • 40
    • 58

    Partly Sunny

    • 44
    • 62

    Chance Rain Showers

    • 47
    • 59

    Rain Showers Likely

Today 23 Apr Hunterdon

Patchy fog in the morning. Sunny, warmer with Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 23 Apr Hunterdon

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 40s. North Winds 5 to 10 Mph.

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Bethlehem Temperature Statistics

April Temperature

Somerville, Somerset Airport (18 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    54.9 °F

  • Highest 16 April, 2026

    90 °F

Climate (2021–Present)

Somerville, Somerset Airport (18 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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