Lancaster Weather Forecast

    • 65
    • 94

    Mostly Sunny

    • 67
    • 92

    Slight Chance Thunderstorms

    • 68
    • 92

    Mostly Sunny

    • 69
    • 94

    Mostly Sunny

    • 66
    • 94

    Chance Thunderstorms

    • 63
    • 91

    Slight Chance Rain Showers

Today 6 Sep Smith

Sunny. Near steady temperature in the lower 90s. North Winds 5 to 10 Mph.

Tonight 6 Sep Smith

Mostly clear. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lancaster Temperature Statistics

September Temperature

Sparta Upper Cumberland Regional Airport (18.6 miles)

  • Lowest 1 September, 2026

    66.2 °F

  • Average September

    81.1 °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

    47.4 °F

  • Average 2021–2026

    59.8 °F

  • Average High 2021–2026

    70.5 °F
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