Bethlehem Weather Forecast

    • 61
    • 83

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 70
    • 92

    Slight Chance Thunderstorms

    • 73
    • 96

    Chance Thunderstorms

    • 71
    • 95

    Chance Thunderstorms

Today 7 Jun Northampton

Sunny. Highs in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 7 Jun Northampton

Mostly clear. Lows in the upper 50s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bethlehem Temperature Statistics

June Temperature

Allentown, Lehigh Valley International Airport (4.3 miles)

  • Lowest 2 June, 2026

    44.7 °F

  • Average June

    67.4 °F

  • Highest 5 June, 2026

    90 °F

Climate (2021–Present)

Allentown, Lehigh Valley International Airport (4.3 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.5 °F
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