Lancaster Weather Forecast

    • 57
    • 70

    Mostly Cloudy

    • 56
    • 71

    Chance Rain Showers

    • 59
    • 74

    Mostly Cloudy

    • 32
    • 74

    Rain Showers Likely

    • 16
    • 43

    Partly Sunny

    • 19
    • 35

    Mostly Sunny

Today 25 Dec Smith

Mostly cloudy. Near steady temperature in the upper 60s. Southwest Winds around 5 Mph.

Tonight 25 Dec Smith

Mostly cloudy. Lows in the upper 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lancaster Temperature Statistics

December Temperature

Sparta Upper Cumberland Regional Airport (18.6 miles)

  • Lowest 15 December, 2025

    10.4 °F

  • Average December

    39.6 °F

  • Highest 23 December, 2025

    66.2 °F

Climate (2020–Present)

Sparta Upper Cumberland Regional Airport (18.6 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    59.3 °F

  • Average High 2020–2025

    70 °F
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