Chambersburg Weather Forecast

    • 61
    • 84

    Mostly Sunny

    • 65
    • 86

    Mostly Cloudy

    • 69
    • 86

    Chance Thunderstorms

    • 70
    • 89

    Rain Showers Likely

    • 69
    • 89

    Chance Thunderstorms

    • 68
    • 88

    Chance Thunderstorms

    • 69
    • 89

    Slight Chance Thunderstorms

Today 3 Aug Franklin

Mostly sunny. Near steady temperature in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 3 Aug Franklin

Mostly clear. Cooler with Lows around 60. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Chambersburg Temperature Statistics

August Temperature

Hagerstown, Washington County Regional Airport (16.2 miles)

  • Lowest 1 August, 2026

    64.9 °F

  • Average August

    76.3 °F

  • Highest 1 August, 2026

    84.9 °F

Climate (2021–2026)

Hagerstown, Washington County Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    66 °F
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