Potomac River - Breton Beach Weather Forecast

    • 35
    • 70

    Rain Showers

    • 33
    • 49

    Mostly Sunny

    • 47
    • 58

    Partly Sunny

    • 54
    • 66

    Mostly Cloudy

    • 60
    • 73

    Partly Sunny

    • 61
    • 79

    Chance Rain Showers

Today 27 Mar St. Marys

Showers. Highs in the upper 60s. Temperature falling to around 50 late. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 27 Mar St. Marys

Mostly cloudy. Showers in the evening. Much cooler with Lows in the mid 30s. North Winds 10 to 15 Mph. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Breton Beach Temperature Statistics

March Temperature

St Marys County Airport (8.7 miles)

  • Lowest 18 March, 2026

    26.4 °F

  • Average March

    51.2 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    66.6 °F
Get WillyWeather+ to remove ads