Harristown Weather Forecast

    • 39
    • 66

    Becoming Sunny

    • 36
    • 61

    Sunny

    • 39
    • 63

    Mostly Sunny

    • 48
    • 67

    Partly Sunny

    • 51
    • 71

    Rain Showers Likely

    • 47
    • 64

    Chance Rain Showers

Today 15 Oct Lancaster

Mostly sunny. Highs in the mid 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Oct Lancaster

Clear, cooler with Lows around 40. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Harristown Temperature Statistics

October Temperature

Chester County Airport (11.2 miles)

  • Lowest 10 October, 2025

    37.4 °F

  • Average October

    59.2 °F

  • Highest 5 October, 2025

    80.6 °F

Climate (2020–Present)

Chester County Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.2 °F
Get WillyWeather+ to remove ads