Lancaster Weather Forecast

    • 13
    • 51

    Slight Chance Rain Showers

    • 9
    • 24

    Mostly Sunny

    • 22
    • 40

    Mostly Sunny

    • 33
    • 50

    Partly Sunny

    • 42
    • 55

    Rain Showers Likely

    • 30
    • 62

    Rain Showers

Today 13 Dec Smith

Sunny. Highs in the upper 40s. Light and variable Winds, becoming northwest around 5 Mph.

Tonight 13 Dec Smith

Mostly cloudy. A slight chance of rain Showers in the evening. Cold with Lows around 13. North Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lancaster Temperature Statistics

December Temperature

Sparta Upper Cumberland Regional Airport (18.6 miles)

  • Lowest 11 December, 2025

    21.2 °F

  • Average December

    35.8 °F

  • Highest 7 December, 2025

    51.8 °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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