Chesapeake Bay - Chesapeake Bay Basin Weather Forecast

    • 73
    • 84

    Partly Sunny

    • 73
    • 87

    Rain Showers

    • 70
    • 82

    Mostly Sunny

    • 71
    • 78

    Mostly Sunny

    • 72
    • 78

    Chance Thunderstorms

    • 72
    • 80

    Chance Thunderstorms

Today 21 Jun St. Marys

Mostly sunny. Highs in the upper 80s. West Winds 5 to 10 Mph.

Tonight 21 Jun St. Marys

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 70. Southeast Winds around 5 Mph.

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Chesapeake Bay - Chesapeake Bay Basin Temperature Statistics

June Temperature

Patuxent River, Naval Air Station (1.2 miles)

  • Lowest 2 June, 2026

    55.9 °F

  • Average June

    75.9 °F

  • Highest 12 June, 2026

    98.1 °F

Climate (2021–2026)

Patuxent River, Naval Air Station (1.2 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    69.2 °F
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