Great Mills Weather Forecast

    • 11
    • 25

    Chance Snow

    • 10
    • 26

    Mostly Sunny

    • 12
    • 24

    Chance Snow

    • 15
    • 22

    Snow Likely

    • 16
    • 26

    Slight Chance Snow

    • 18
    • 33

    Partly Sunny

    • 20
    • 36

    Partly Sunny

Today 28 Jan St. Marys

Mostly cloudy. Highs in the mid 20s. West Winds around 5 Mph.

Tonight 28 Jan St. Marys

Mostly cloudy this Evening, then clearing. Cold with Lows around 11. Northwest Winds 5 to 10 Mph. Gusts up to 25 Mph after midnight. Wind chill Values as low as 2 below.

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Great Mills Temperature Statistics

January Temperature

Patuxent River, Naval Air Station (5 miles)

  • Lowest 24 January, 2026

    14 °F

  • Average January

    36.7 °F

  • Highest 7 January, 2026

    62.1 °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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