Harp Airport Weather Forecast

    • 30
    • 34

    Increasing Clouds

    • 24
    • 42

    Partly Sunny

    • 6
    • 32

    Mostly Cloudy

    • 10
    • 13

    Snow

    • 9
    • 14

    Snow Likely

    • 4
    • 20

    Partly Sunny

Today 21 Jan Frederick

Mostly sunny. Highs in the upper 30s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 21 Jan Frederick

Mostly cloudy in the Evening, then becoming partly cloudy. Not as cool with Lows in the lower 30s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harp Airport Temperature Statistics

January Temperature

Hagerstown, Washington County Regional Airport (11.8 miles)

  • Lowest 16 January, 2026

    19 °F

  • Average January

    36.1 °F

  • Highest 7 January, 2026

    57 °F

Climate (2021–Present)

Hagerstown, Washington County Regional Airport (11.8 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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