Marriottsville Weather Forecast

    • 68
    • 84

    Increasing Clouds

    • 69
    • 86

    Rain Showers

    • 61
    • 84

    Chance Thunderstorms

    • 61
    • 78

    Mostly Sunny

    • 64
    • 81

    Partly Sunny

    • 66
    • 82

    Partly Sunny

Today 20 Jul Northwest Howard

Sunny. Highs in the lower 80s. Northeast Winds around 5 Mph, becoming southeast around 5 Mph in the afternoon.

Tonight 20 Jul Northwest Howard

Partly cloudy in the Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of rain 60 percent.

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Marriottsville Temperature Statistics

July Temperature

Baltimore, Inner Harbor (15.5 miles)

  • Lowest 7 July, 2026

    70 °F

  • Average July

    83.4 °F

  • Highest 4 July, 2026

    104 °F

Climate (2022–2026)

Baltimore, Inner Harbor (15.5 miles)

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  • Average Low 2022–2026

    53.3 °F

  • Average 2022–2026

    60.6 °F

  • Average High 2022–2026

    68.3 °F
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