Chambersburg Weather Forecast

    • 69
    • 85

    Chance Rain Showers

    • 67
    • 87

    Rain Showers

    • 57
    • 83

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 62
    • 82

    Mostly Cloudy

    • 64
    • 85

    Partly Sunny

    • 67
    • 89

    Slight Chance Thunderstorms

Today 20 Jul Franklin

Sunny. Near steady temperature in the lower 80s. South Winds around 5 Mph.

Tonight 20 Jul Franklin

Partly cloudy this Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Not as cool with Lows in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chambersburg Temperature Statistics

July Temperature

Hagerstown, Washington County Regional Airport (16.2 miles)

  • Lowest 13 July, 2026

    64.7 °F

  • Average July

    80.8 °F

  • Highest 2 July, 2026

    99.6 °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

    56.9 °F

  • Average High 2021–2026

    66 °F
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