Harristown Weather Forecast

    • 31
    • 40

    Partly Sunny

    • 22
    • 45

    Breezy

    • 31
    • 39

    Rain

    • 28
    • 49

    Rain

    • 20
    • 36

    Slight Chance Rain/Snow

    • 33
    • 39

    Slight Chance Rain/Snow

    • 24
    • 50

    Mostly Cloudy

Today 28 Jan Lancaster

Mostly sunny. Highs in the lower 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 28 Jan Lancaster

Partly cloudy. Lows around 30. Southwest Winds 10 to 15 Mph.

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Harristown Temperature Statistics

January Temperature

Chester County Airport (11.2 miles)

  • Lowest 22 January, 2025

    -0.4 °F

  • Average January

    25.3 °F

  • Highest 1 January, 2025

    46.4 °F

Climate (2020–Present)

Chester County Airport (11.2 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    63 °F
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