Antietam National Battlefield Weather Forecast

    • 57
    • 85

    Decreasing Clouds

    • 58
    • 78

    Chance Rain Showers

    • 59
    • 73

    Chance Rain Showers

    • 59
    • 83

    Mostly Sunny

    • 58
    • 89

    Mostly Sunny

    • 57
    • 82

    Mostly Cloudy

Today 15 Sep Washington

Partly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 15 Sep Washington

Mostly cloudy. Lows in the upper 50s. East Winds 5 to 10 Mph, becoming northeast after midnight.

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Antietam National Battlefield Temperature Statistics

September Temperature

Eastern WV Regional Airport/Shepherd Field (13 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    66 °F

  • Highest 5 September, 2025

    87.1 °F

Climate (2020–Present)

Eastern WV Regional Airport/Shepherd Field (13 miles)

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  • Average Low 2020–2025

    44.7 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    65.7 °F
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