Allentown Weather Forecast

    • 62
    • 81

    Rain Showers Likely

    • 58
    • 79

    Chance Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 62
    • 84

    Partly Sunny

    • 64
    • 85

    Slight Chance Rain Showers

Today 31 Jul Allegheny

Mostly cloudy. A chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Humid with Highs around 80. Temperatures falling into the mid 70s in the afternoon. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 31 Jul Allegheny

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allentown Temperature Statistics

July Temperature

Pittsburgh - Allegheny County Airport (5.6 miles)

  • Lowest 22 July, 2025

    57.7 °F
  • Average July

    76.8 °F
  • Highest 26 July, 2025

    90.6 °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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