Patuxent River - Swanson Creek Entrance Weather Forecast

    • 70
    • 84

    Chance Rain Showers

    • 60
    • 80

    Mostly Sunny

    • 62
    • 79

    Mostly Sunny

    • 64
    • 79

    Mostly Sunny

    • 67
    • 81

    Mostly Sunny

    • 67
    • 83

    Chance Rain Showers

Today 13 Sep St. Marys

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Morning, then partly sunny in the afternoon. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 13 Sep St. Marys

Showers with a slight chance of Thunderstorms. Patchy fog. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Patuxent River - Swanson Creek Entrance Temperature Statistics

September Temperature

St Marys County Airport (16.8 miles)

  • Lowest 8 September, 2026

    59.5 °F

  • Average September

    76.3 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

St Marys County Airport (16.8 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    67 °F
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