Lancaster Weather Forecast

    • 75
    • 95

    Chance Thunderstorms

    • 76
    • 97

    Hot

    • 76
    • 97

    Hot

    • 75
    • 98

    Hot

    • 72
    • 98

    Slight Chance Thunderstorms

    • 71
    • 93

    Chance Thunderstorms

Today 13 Aug Smith

Mostly sunny with a chance of Showers. A slight chance of Thunderstorms this Morning, then a chance of Thunderstorms this afternoon. Highs in the mid 90s. Southwest Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 108.

Tonight 13 Aug Smith

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 70s. South Winds around 5 Mph. Heat index Values up to 105 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lancaster Temperature Statistics

August Temperature

Sparta Upper Cumberland Regional Airport (18.6 miles)

  • Lowest 2 August, 2026

    66.2 °F

  • Average August

    76.2 °F

  • Highest 11 August, 2026

    91.4 °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

    59.7 °F

  • Average High 2021–2026

    70.5 °F
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