Greencastle Weather Forecast

    • 42
    • 54

    Rain Likely

    • 37
    • 46

    Rain

    • 28
    • 43

    Slight Chance Rain Showers

    • 29
    • 42

    Partly Sunny

    • 32
    • 47

    Mostly Cloudy

    • 29
    • 47

    Mostly Cloudy

Today 9 Jan Franklin

Partly sunny with a slight chance of rain this Morning, then cloudy with rain likely this afternoon. Warm with Highs in the lower 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 9 Jan Franklin

Cloudy, mild. Lows around 40. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming north after midnight.

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  • Temperature Real-Time

Greencastle Temperature Statistics

January Temperature

Hagerstown, Washington County Regional Airport (5.6 miles)

  • Lowest 1 January, 2026

    19.4 °F

  • Average January

    30.6 °F

  • Highest 6 January, 2026

    44.1 °F

Climate (2021–Present)

Hagerstown, Washington County Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    65.8 °F
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