Potomac River - Old Breton Beach Weather Forecast

    • 38
    • 43

    Rain

    • 37
    • 43

    Mostly Cloudy

    • 43
    • 51

    Mostly Cloudy

    • 46
    • 54

    Slight Chance Rain

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    • 56

    Chance Rain

    • 45
    • 57

    Chance Rain

Today 15 Feb St. Marys

A chance of rain in the Morning, then rain in the afternoon. Highs in the upper 40s. Southwest Winds around 5 Mph, becoming southeast in the afternoon. Chance of rain near 100 percent.

Tonight 15 Feb St. Marys

Rain, mainly in the evening. Patchy fog. Visibility one quarter mile or less at Times. Lows in the mid 30s. Northeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

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Potomac River - Old Breton Beach Temperature Statistics

February Temperature

St Marys County Airport (8.7 miles)

  • Lowest 9 February, 2026

    11.7 °F

  • Average February

    29.1 °F

  • Highest 11 February, 2026

    52 °F

Climate (2021–Present)

St Marys County Airport (8.7 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    66.5 °F
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