Allentown Weather Forecast

    • 18
    • 28

    Snow Showers

    • 32
    • 38

    Mostly Cloudy

    • 37
    • 51

    Mostly Cloudy

    • 41
    • 58

    Chance Rain

    • 44
    • 59

    Slight Chance Rain

    • 36
    • 63

    Chance Rain

Today 17 Mar Allegheny

Numerous snow Showers. Snow accumulation less than an inch. Unseasonably cold with Highs in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of snow 70 percent.

Tonight 17 Mar Allegheny

Partly cloudy. Scattered snow Showers in the evening. Little or no snow accumulation. Very cold with Lows around 17. West Winds 5 to 10 Mph. Chance of snow 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allentown Temperature Statistics

March Temperature

Pittsburgh - Allegheny County Airport (5.6 miles)

  • Lowest 2 March, 2026

    19.9 °F

  • Average March

    49.4 °F

  • Highest 7 March, 2026

    78.1 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (5.6 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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