Lancaster Weather Forecast

    • 63
    • 87

    Chance Thunderstorms

    • 60
    • 84

    Mostly Cloudy

    • 58
    • 83

    Partly Sunny

    • 53
    • 82

    Partly Sunny

    • 53
    • 82

    Partly Sunny

    • 55
    • 84

    Partly Sunny

Today 22 Sep Smith

Patchy fog this morning. Mostly sunny. Highs in the mid 80s. North Winds 5 to 10 Mph.

Tonight 22 Sep Smith

Partly cloudy. Lows in the lower 60s. North 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

    79 °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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