Harristown Weather Forecast

    • 39
    • 45

    Chance Rain

    • 52
    • 53

    Rain Showers Likely

    • 41
    • 64

    Partly Sunny

    • 48
    • 67

    Partly Sunny

    • 54
    • 73

    Chance Rain Showers

    • 43
    • 71

    Rain Likely

    • 31
    • 52

    Slight Chance Rain/Snow

Today 6 Mar Lancaster

Mostly cloudy. Near steady temperature in the mid 40s. East Winds 5 to 10 Mph.

Tonight 6 Mar Lancaster

Cloudy. A slight chance of rain this Evening, then a chance of Showers after midnight. Patchy fog this Evening, then Areas of fog after midnight. Lows around 40. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harristown Temperature Statistics

March Temperature

Chester County Airport (11.2 miles)

  • Lowest 2 March, 2026

    21.6 °F

  • Average March

    34.6 °F

  • Highest 4 March, 2026

    45.1 °F

Climate (2021–Present)

Chester County Airport (11.2 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    62.9 °F
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