Bethlehem Weather Forecast

    • 20
    • 48

    Breezy

    • 30
    • 39

    Rain

    • 29
    • 47

    Rain

    • 19
    • 37

    Partly Sunny

    • 33
    • 37

    Slight Chance Rain/Snow

    • 28
    • 47

    Mostly Cloudy

Today 29 Jan Northampton

Partly sunny with a slight chance of rain or snow Showers. Breezy with Highs in the mid 40s. Temperature falling to around 40 late. West Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of precipitation 20 percent.

Tonight 29 Jan Northampton

Partly cloudy in the Evening, then clearing. Cold with Lows around 18. Northwest Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bethlehem Temperature Statistics

January Temperature

Allentown, Lehigh Valley International Airport (4.3 miles)

  • Lowest 22 January, 2025

    -7.1 °F

  • Average January

    25.8 °F

  • Highest 1 January, 2025

    45.6 °F

Climate (2020–Present)

Allentown, Lehigh Valley International Airport (4.3 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    63.5 °F
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