Chambersburg Weather Forecast

    • 70
    • 88

    Slight Chance Rain Showers

    • 66
    • 88

    Rain Showers Likely

    • 66
    • 86

    Chance Rain Showers

    • 66
    • 87

    Chance Rain Showers

    • 60
    • 83

    Partly Sunny

    • 63
    • 82

    Slight Chance Thunderstorms

    • 67
    • 86

    Chance Rain Showers

Today 10 Aug Franklin

Showers with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Very warm with Highs in the lower 90s. West Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 10 Aug Franklin

Mostly cloudy. A slight chance of Showers this evening. Lows in the upper 60s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chambersburg Temperature Statistics

August Temperature

Hagerstown, Washington County Regional Airport (16.2 miles)

  • Lowest 4 August, 2026

    64.7 °F

  • Average August

    78.3 °F

  • Highest 6 August, 2026

    91.7 °F

Climate (2021–2026)

Hagerstown, Washington County Regional Airport (16.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    66 °F
Get WillyWeather+ to remove ads