Harristown Weather Forecast

    • 26
    • 40

    Snow Likely

    • 23
    • 38

    Rain/Snow

    • 24
    • 37

    Partly Sunny

    • 15
    • 39

    Partly Sunny

    • 23
    • 31

    Chance Rain/Snow

    • 26
    • 38

    Chance Rain

Today 1 Dec Lancaster

Sunny. Highs in the lower 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 1 Dec Lancaster

Mostly clear. Near steady temperature around 30. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Harristown Temperature Statistics

December Temperature

Chester County Airport (11.2 miles)

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  • Average December

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Climate (2020–Present)

Chester County Airport (11.2 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.1 °F
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