South Mountain Weather Forecast

    • 40
    • 57

    Increasing Clouds

    • 41
    • 59

    Mostly Cloudy

    • 43
    • 61

    Partly Sunny

    • 49
    • 65

    Mostly Cloudy

    • 54
    • 66

    Rain Showers Likely

    • 53
    • 66

    Rain Showers Likely

Today 31 Oct Franklin

Mostly sunny. Highs in the lower 60s. North Winds around 5 Mph.

Tonight 31 Oct Franklin

Mostly cloudy. Lows around 40. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Mountain Temperature Statistics

October Temperature

Hagerstown, Washington County Regional Airport (15.5 miles)

  • Lowest 18 October, 2026

    34.6 °F

  • Average October

    59 °F

  • Highest 2 October, 2026

    86.6 °F

Climate (2021–2026)

Hagerstown, Washington County Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    66 °F
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