Harristown Weather Forecast

    • 65
    • 90

    Partly Sunny

    • 66
    • 91

    Mostly Cloudy

    • 62
    • 87

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 63
    • 86

    Partly Sunny

Today 5 Jun Lancaster

Mostly sunny. Hot with Highs around 90. West Winds 5 to 10 Mph.

Tonight 5 Jun Lancaster

Partly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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Harristown Temperature Statistics

June Temperature

Chester County Airport (11.2 miles)

  • Lowest 2 June, 2026

    44.4 °F

  • Average June

    63.3 °F

  • Highest 2 June, 2026

    74.7 °F

Climate (2021–Present)

Chester County Airport (11.2 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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