Great Mills Weather Forecast

    • 47
    • 72

    Sunny

    • 42
    • 62

    Sunny

    • 46
    • 63

    Sunny

    • 54
    • 68

    Partly Sunny

    • 53
    • 73

    Rain Showers Likely

    • 49
    • 67

    Slight Chance Rain Showers

    • 50
    • 69

    Mostly Sunny

Today 15 Oct St. Marys

Sunny. Highs in the lower 70s. North Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 15 Oct St. Marys

Clear. Lows in the upper 40s. North Winds 10 to 15 Mph with Gusts up to 25 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 3 October, 2025

    50 °F

  • Average October

    64.1 °F

  • Highest 6 October, 2025

    80.1 °F

Climate (2020–Present)

Patuxent River, Naval Air Station (5 miles)

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  • Average Low 2020–2025

    53.1 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    69.5 °F
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