Mount Aetna Weather Forecast

    • 64
    • 78

    Mostly Cloudy

    • 66
    • 75

    Mostly Cloudy

    • 66
    • 81

    Chance Rain Showers

    • 64
    • 83

    Slight Chance Rain Showers

    • 66
    • 86

    Partly Sunny

    • 67
    • 87

    Chance Rain Showers

Today 18 Aug Washington

Partly sunny in the Morning, then becoming mostly cloudy. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 18 Aug Washington

Mostly cloudy. Lows in the mid 60s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Aetna Temperature Statistics

August Temperature

Hagerstown, Washington County Regional Airport (8.7 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    75.5 °F

  • Highest 12 August, 2025

    92.6 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (8.7 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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