Patuxent River - Thomas Johnson Bridge Weather Forecast

    • 37
    • 56

    Rain Showers

    • 38
    • 46

    Partly Sunny

    • 47
    • 53

    Partly Sunny

    • 54
    • 66

    Chance Rain

    • 36
    • 62

    Chance Rain

    • 35
    • 46

    Mostly Sunny

Today 23 Mar St. Marys

Mostly cloudy with scattered Showers with isolated Thunderstorms in the Morning, then mostly sunny with scattered Showers in the afternoon. Highs in the lower 60s. North Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 23 Mar St. Marys

Mostly clear. Cooler with Lows in the mid 30s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Patuxent River - Thomas Johnson Bridge Temperature Statistics

March Temperature

St Marys County Airport (3.7 miles)

  • Lowest 18 March, 2026

    26.4 °F

  • Average March

    50.5 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (3.7 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    66.6 °F
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