Great Mills Weather Forecast

    • 51
    • 58

    Increasing Clouds

    • 32
    • 69

    Rain Showers

    • 26
    • 45

    Partly Sunny

    • 33
    • 43

    Mostly Cloudy

    • 37
    • 53

    Partly Sunny

    • 41
    • 57

    Partly Sunny

Today 15 Mar St. Marys

Partly sunny. Highs in the upper 50s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 15 Mar St. Marys

Showers. Lows in the lower 50s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

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Great Mills Temperature Statistics

March Temperature

Patuxent River, Naval Air Station (5 miles)

  • Lowest 2 March, 2026

    30.9 °F

  • Average March

    50.7 °F

  • Highest 11 March, 2026

    84.9 °F

Climate (2021–Present)

Patuxent River, Naval Air Station (5 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    69.3 °F
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