Chesapeake Bay - Chesapeake Bay Basin Weather Forecast

    • 36
    • 40

    Mostly Sunny

    • 41
    • 47

    Partly Sunny

    • 49
    • 55

    Chance Rain Showers

    • 49
    • 61

    Partly Sunny

    • 48
    • 63

    Chance Rain

    • 36
    • 57

    Slight Chance Rain

    • 39
    • 46

    Mostly Cloudy

Today 18 Mar St. Marys

Sunny. Highs in the lower 40s. Southeast Winds around 5 Mph.

Tonight 18 Mar St. Marys

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 30s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Bay - Chesapeake Bay Basin Temperature Statistics

March Temperature

Patuxent River, Naval Air Station (1.2 miles)

  • Lowest 13 March, 2026

    28 °F

  • Average March

    50.4 °F

  • Highest 11 March, 2026

    84.9 °F

Climate (2021–Present)

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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