Great Mills Weather Forecast

    • 51
    • 67

    Patchy Fog

    • 51
    • 70

    Partly Sunny

    • 50
    • 74

    Mostly Sunny

    • 49
    • 63

    Mostly Cloudy

    • 53
    • 67

    Mostly Cloudy

    • 54
    • 68

    Chance Rain Showers

Today 28 Oct St. Marys

Mostly sunny. Highs in the upper 60s. East Winds around 5 Mph.

Tonight 28 Oct St. Marys

Mostly cloudy. Patchy fog. Lows in the lower 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Mills Temperature Statistics

October Temperature

Patuxent River, Naval Air Station (5 miles)

  • Lowest 18 October, 2026

    42.1 °F

  • Average October

    62.7 °F

  • Highest 14 October, 2026

    90 °F

Climate (2021–2026)

Patuxent River, Naval Air Station (5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    60.9 °F

  • Average High 2021–2026

    69.1 °F
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