Hellertown Weather Forecast

    • 14
    • 28

    Clearing Late

    • 21
    • 31

    Mostly Cloudy

    • 23
    • 42

    Mostly Cloudy

    • 34
    • 49

    Rain

    • 21
    • 42

    Mostly Cloudy

    • 31
    • 37

    Slight Chance Rain

Today 15 Dec Northampton

Mostly sunny this Morning, then becoming mostly cloudy. Cold with Highs in the upper 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Wind chill Values as low as 2 below this morning.

Tonight 15 Dec Northampton

Mostly cloudy in the Evening, then becoming partly cloudy. Cold with Lows around 13. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hellertown Temperature Statistics

December Temperature

Allentown, Lehigh Valley International Airport (6.8 miles)

  • Lowest 9 December, 2025

    8.1 °F

  • Average December

    28.6 °F

  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Allentown, Lehigh Valley International Airport (6.8 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    63.5 °F
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