Harleysville Weather Forecast

    • 57
    • 72

    Chance Rain Showers

    • 58
    • 81

    Sunny

    • 64
    • 83

    Mostly Sunny

    • 64
    • 82

    Rain Showers Likely

    • 57
    • 80

    Chance Rain Showers

    • 54
    • 76

    Mostly Sunny

Today 21 Aug Western Montgomery

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the morning. Highs in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 21 Aug Western Montgomery

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Harleysville Temperature Statistics

August Temperature

Pottstown, Pottstown Limerick Airport (9.3 miles)

  • Lowest 9 August, 2025

    53.7 °F

  • Average August

    74.1 °F

  • Highest 17 August, 2025

    93.7 °F

Climate (2020–Present)

Pottstown, Pottstown Limerick Airport (9.3 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    64.5 °F
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