Patapsco Valley State Park Weather Forecast

    • 68
    • 81

    Rain Showers

    • 67
    • 85

    Partly Sunny

    • 54
    • 78

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 62
    • 83

    Mostly Sunny

    • 64
    • 85

    Slight Chance Rain Showers

Today 12 Sep Central and Southeast Howard

Mostly cloudy. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 12 Sep Central and Southeast Howard

Scattered Thunderstorms. Numerous Showers in the Evening, then Showers after midnight. Patchy fog after midnight. Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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Patapsco Valley State Park Temperature Statistics

September Temperature

Baltimore, Inner Harbor (9.3 miles)

  • Lowest 8 September, 2026

    64 °F

  • Average September

    79 °F

  • Highest 1 September, 2026

    96.1 °F

Climate (2022–2026)

Baltimore, Inner Harbor (9.3 miles)

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  • Average Low 2022–2026

    54.1 °F

  • Average 2022–2026

    61.3 °F

  • Average High 2022–2026

    69 °F
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