Patapsco River - Fort McHenry Anchorage Weather Forecast

    • 68
    • 84

    Chance Thunderstorms

    • 73
    • 86

    Mostly Sunny

    • 63
    • 86

    Rain Showers Likely

    • 59
    • 72

    Partly Sunny

    • 58
    • 72

    Mostly Sunny

    • 59
    • 75

    Partly Sunny

Today 4 Sep Southern Baltimore

Sunny. A chance of Thunderstorms with a slight chance of Showers this afternoon. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 4 Sep Southern Baltimore

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight. Chance of rain 50 percent.

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Patapsco River - Fort McHenry Anchorage Temperature Statistics

September Temperature

Baltimore, Inner Harbor (3.7 miles)

  • Lowest 1 September, 2025

    62.1 °F

  • Average September

    71 °F

  • Highest 1 September, 2025

    81 °F

Climate (2022–Present)

Baltimore, Inner Harbor (3.7 miles)

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  • Average Low 2022–2025

    54.9 °F

  • Average 2022–2025

    62.1 °F

  • Average High 2022–2025

    69.8 °F
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