Lancaster Weather Forecast

    • 74
    • 100

    Hot

    • 74
    • 101

    Hot

    • 71
    • 99

    Hot

    • 66
    • 95

    Mostly Sunny

    • 67
    • 93

    Mostly Sunny

    • 68
    • 93

    Mostly Sunny

Today 3 Sep Smith

Sunny, hot with Highs in the upper 90s. Light and variable Winds. Heat index Values up to 111.

Tonight 3 Sep Smith

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 70s. Light and variable Winds. Heat index Values up to 105 early in the evening.

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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

    79.8 °F

  • Highest 1 September, 2026

    95 °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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