Colonial Beach Weather Forecast

    • 50
    • 65

    Sunny

    • 55
    • 68

    Rain Showers

    • 49
    • 63

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

    • 51
    • 61

    Partly Sunny

    • 55
    • 60

    Rain Showers

Today 20 Oct Westmoreland

Mostly sunny. Highs in the upper 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 20 Oct Westmoreland

Clear. Lows in the lower 40s. Northwest Winds 5 to 10 Mph, becoming southwest after midnight.

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Colonial Beach Temperature Statistics

October Temperature

St Marys County Airport (22.4 miles)

  • Lowest 17 October, 2025

    41.4 °F

  • Average October

    61.1 °F

  • Highest 7 October, 2025

    80.8 °F

Climate (2020–Present)

St Marys County Airport (22.4 miles)

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  • Average Low 2020–2025

    49.7 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    66.8 °F
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