Chambersburg Weather Forecast

    • 53
    • 80

    Mostly Sunny

    • 51
    • 77

    Partly Sunny

    • 52
    • 77

    Partly Sunny

    • 56
    • 79

    Partly Sunny

    • 50
    • 74

    Slight Chance Thunderstorms

    • 51
    • 76

    Partly Sunny

Today 25 Aug Franklin

Mostly sunny. Highs in the upper 70s. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 25 Aug Franklin

Mostly clear. Lows in the lower 50s. Northwest Winds 5 to 10 Mph.

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Chambersburg Temperature Statistics

August Temperature

Hagerstown, Washington County Regional Airport (16.2 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    75.3 °F

  • Highest 15 August, 2025

    94.6 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (16.2 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    65.9 °F
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