Swartzville Weather Forecast

    • 31
    • 38

    Increasing Clouds

    • 21
    • 40

    Partly Sunny

    • 28
    • 36

    Chance Rain/Snow

    • 32
    • 45

    Mostly Cloudy

    • 31
    • 43

    Chance Rain Showers

    • 42
    • 48

    Slight Chance Rain Showers

Today 20 Dec Lancaster

Sunny. Much cooler with Highs in the upper 30s. West Winds 5 to 10 Mph, becoming south this afternoon.

Tonight 20 Dec Lancaster

Mostly clear in the Evening, then becoming mostly cloudy. Not as cool with Lows in the lower 30s. South Winds around 10 Mph, becoming southwest after midnight.

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Swartzville Temperature Statistics

December Temperature

Reading, Reading Regional Airport (11.2 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    29.8 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Reading, Reading Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    65 °F
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