Lancaster Weather Forecast

    • 52
    • 82

    Mostly Sunny

    • 51
    • 80

    Partly Sunny

    • 49
    • 80

    Partly Sunny

    • 51
    • 83

    Mostly Sunny

    • 61
    • 87

    Partly Sunny

    • 65
    • 90

    Chance Rain Showers

Today 25 Sep Smith

Sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 25 Sep Smith

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Northeast Winds around 5 Mph.

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Lancaster Temperature Statistics

September Temperature

Sparta Upper Cumberland Regional Airport (18.6 miles)

  • Lowest 15 September, 2026

    64.4 °F

  • Average September

    78.8 °F

  • Highest 3 September, 2026

    98.6 °F

Climate (2021–2026)

Sparta Upper Cumberland Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    59.9 °F

  • Average High 2021–2026

    70.6 °F
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