Marriottsville Weather Forecast

    • 55
    • 81

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 60
    • 83

    Mostly Cloudy

    • 57
    • 80

    Partly Sunny

    • 58
    • 78

    Partly Sunny

Today 12 Sep Northwest Howard

Sunny. Highs around 80. East Winds around 5 Mph.

Tonight 12 Sep Northwest Howard

Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Marriottsville Temperature Statistics

September Temperature

Baltimore, Inner Harbor (15.5 miles)

  • Lowest 9 September, 2025

    57.9 °F

  • Average September

    71.2 °F

  • Highest 6 September, 2025

    88 °F

Climate (2022–Present)

Baltimore, Inner Harbor (15.5 miles)

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  • Average Low 2022–2025

    55 °F

  • Average 2022–2025

    62.2 °F

  • Average High 2022–2025

    69.9 °F
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