Chesapeake Harbor Weather Forecast

    • 74
    • 83

    Chance Rain Showers

    • 69
    • 82

    Partly Sunny

    • 69
    • 78

    Mostly Cloudy

    • 68
    • 82

    Rain Showers Likely

    • 67
    • 78

    Chance Rain Showers

    • 66
    • 76

    Chance Rain Showers

Today 17 Sep Anne Arundel

Mostly sunny with a 20 percent chance of Showers. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 17 Sep Anne Arundel

Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Thunderstorms. A chance of Showers, mainly in the evening. Lows in the lower 70s. South Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Harbor Temperature Statistics

September Temperature

Annapolis, United States Naval Academy (1.9 miles)

  • Lowest 8 September, 2026

    64.7 °F

  • Average September

    78.1 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Annapolis, United States Naval Academy (1.9 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    59.4 °F

  • Average High 2021–2026

    66.4 °F
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