Mercersburg Weather Forecast

    • 41
    • 55

    Mostly Cloudy

    • 44
    • 60

    Mostly Cloudy

    • 59
    • 66

    Rain Showers

    • 41
    • 68

    Rain Showers

    • 37
    • 56

    Mostly Sunny

    • 45
    • 68

    Partly Sunny

    • 47
    • 74

    Mostly Cloudy

Today 13 Mar Franklin

Mostly sunny. Highs in the lower 50s. East Winds around 5 Mph.

Tonight 13 Mar Franklin

Partly cloudy this Evening, then becoming mostly cloudy. Lows around 40. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercersburg Temperature Statistics

March Temperature

Hagerstown, Washington County Regional Airport (12.4 miles)

  • Lowest 2 March, 2025

    17.9 °F

  • Average March

    44.5 °F

  • Highest 11 March, 2025

    73.9 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (12.4 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    56.6 °F

  • Average High 2020–2025

    65.6 °F
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