Harmans Weather Forecast

    • 64
    • 83

    Decreasing Clouds

    • 60
    • 80

    Partly Sunny

    • 61
    • 81

    Mostly Sunny

    • 64
    • 84

    Partly Sunny

    • 71
    • 87

    Partly Sunny

    • 66
    • 90

    Slight Chance Thunderstorms

Today 5 Sep Anne Arundel

Mostly cloudy. A slight chance of Showers in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 5 Sep Anne Arundel

Partly cloudy. Lows in the mid 60s. Northeast Winds around 5 Mph.

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Harmans Temperature Statistics

September Temperature

Baltimore, Baltimore-Washington International Airport (1.2 miles)

  • Lowest 2 September, 2026

    71.1 °F

  • Average September

    80 °F

  • Highest 1 September, 2026

    95.6 °F

Climate (2021–2026)

Baltimore, Baltimore-Washington International Airport (1.2 miles)

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  • Average Low 2021–2026

    48.6 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    68.3 °F
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