Allentown Weather Forecast

    • 38
    • 52

    Slight Chance Rain Showers

    • 38
    • 55

    Mostly Cloudy

    • 37
    • 56

    Slight Chance Rain Showers

    • 39
    • 56

    Chance Rain Showers

    • 38
    • 55

    Partly Sunny

    • 43
    • 59

    Chance Rain Showers

Today 31 Oct Allegheny

Partly cloudy in the Morning, then becoming partly sunny. A 20 percent chance of Showers. Highs in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 31 Oct Allegheny

Mostly cloudy with a slight chance of Showers in the Evening, then mainly clear after midnight. Lows in the upper 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Allentown Temperature Statistics

October Temperature

Pittsburgh - Allegheny County Airport (5.6 miles)

  • Lowest 26 October, 2025

    34 °F

  • Average October

    55.3 °F

  • Highest 6 October, 2025

    81 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (5.6 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    63.4 °F
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