Dahlgren Weather Forecast

    • 26
    • 38

    Mostly Sunny

    • 34
    • 50

    Mostly Sunny

    • 38
    • 58

    Slight Chance Rain Showers

    • 18
    • 43

    Mostly Cloudy

    • 25
    • 36

    Partly Sunny

    • 23
    • 42

    Mostly Cloudy

Today 11 Jan Hamilton

Sunny. Highs in the upper 30s. Northwest Winds 10 to 15 Mph. Gusts up to 35 Mph this morning.

Tonight 11 Jan Hamilton

Mostly clear. Lows in the lower 20s. Calm Winds, becoming southwest around 5 Mph after midnight.

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Dahlgren Temperature Statistics

January Temperature

Mount Vernon Airport (12.4 miles)

  • Lowest 4 January, 2026

    18 °F

  • Average January

    41.3 °F

  • Highest 8 January, 2026

    66.9 °F

Climate (2021–Present)

Mount Vernon Airport (12.4 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    68.5 °F
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