Potomac River - Cornfield Harbor Weather Forecast

    • 38
    • 61

    Becoming Sunny

    • 41
    • 45

    Partly Sunny

    • 49
    • 53

    Partly Sunny

    • 56
    • 65

    Chance Rain

    • 36
    • 62

    Chance Rain

    • 38
    • 45

    Mostly Sunny

    • 45
    • 52

    Mostly Sunny

Today 23 Mar St. Marys

Partly sunny. Highs around 70. Temperature falling into the mid 50s late. North Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 23 Mar St. Marys

Mostly clear. Cooler with Lows in the mid 30s. North Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 30 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Cornfield Harbor Temperature Statistics

March Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 miles)

  • Lowest 18 March, 2026

    28.9 °F

  • Average March

    51.7 °F

  • Highest 11 March, 2026

    82 °F

Climate (2021–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 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