Potomac River - Lake Conoy Entrance Weather Forecast

    • 18
    • 26

    Becoming Sunny

    • 17
    • 26

    Mostly Sunny

    • 18
    • 24

    Chance Snow

    • 20
    • 23

    Snow Likely

    • 21
    • 27

    Slight Chance Snow

    • 24
    • 33

    Mostly Sunny

    • 26
    • 35

    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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Potomac River - Lake Conoy Entrance Temperature Statistics

January Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (8.1 miles)

  • Lowest 19 January, 2026

    21 °F

  • Average January

    38.8 °F

  • Highest 7 January, 2026

    64.9 °F

Climate (2021–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (8.1 miles)

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  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    68.9 °F
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