Chesapeake Bay - Potomac River Entrance Weather Forecast

    • 54
    • 67

    Increasing Clouds

    • 40
    • 64

    Rain

    • 38
    • 47

    Breezy

    • 44
    • 49

    Mostly Sunny

    • 52
    • 60

    Partly Sunny

    • 55
    • 62

    Mostly Cloudy

Today 26 Mar St. Marys

Mostly sunny. Highs in the lower 70s. Southwest Winds 10 to 15 Mph.

Tonight 26 Mar St. Marys

Partly cloudy in the Evening, then mostly cloudy with a slight chance of rain after midnight. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Bay - Potomac River Entrance Temperature Statistics

March Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (9.3 miles)

  • Lowest 18 March, 2026

    28.9 °F

  • Average March

    51.8 °F

  • Highest 11 March, 2026

    82 °F

Climate (2021–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (9.3 miles)

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

  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    68.9 °F
Get WillyWeather+ to remove ads