Allentown Weather Forecast

    • 41
    • 57

    Increasing Clouds

    • 44
    • 69

    Rain Showers Likely

    • 28
    • 48

    Chance Rain Showers

    • 33
    • 49

    Mostly Cloudy

    • 30
    • 49

    Partly Sunny

    • 37
    • 56

    Chance Rain

Today 21 Mar Lehigh

Mostly sunny. Highs in the mid 50s. Northwest Winds 5 to 10 Mph.

Tonight 21 Mar Lehigh

Mostly cloudy. Lows in the lower 40s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allentown Temperature Statistics

March Temperature

Allentown Queen City Municipal Airport (2.5 miles)

  • Lowest 2 March, 2026

    21.2 °F

  • Average March

    44.1 °F

  • Highest 10 March, 2026

    80.6 °F

Climate (2021–Present)

Allentown Queen City Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    64 °F
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