Lancaster Weather Forecast

    • 72
    • 98

    Hot

    • 71
    • 100

    Hot

    • 69
    • 99

    Hot

    • 71
    • 98

    Hot

    • 70
    • 97

    Hot

    • 66
    • 94

    Chance Thunderstorms

Today 16 Sep Smith

Sunny, hot with Highs in the upper 90s. South Winds around 5 Mph. Heat index Values up to 106.

Tonight 16 Sep Smith

Mostly clear. Lows in the lower 70s. Light and variable Winds.

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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

    79.1 °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

    47.5 °F

  • Average 2021–2026

    59.8 °F

  • Average High 2021–2026

    70.6 °F
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