Marine On St Croix Weather Forecast

    • 14
    • 20

    Chance Sleet

    • -3
    • 28

    Partly Sunny

    • 10
    • 20

    Partly Sunny

    • 21
    • 34

    Slight Chance Snow

    • 18
    • 30

    Mostly Cloudy

    • 31
    • 37

    Mostly Cloudy

Today 19 Dec Washington

Colder. Partly sunny. Highs around 20. Southwest Winds around 5 Mph shifting to the south 5 to 15 Mph in the afternoon.

Tonight 19 Dec Washington

Not as cold. Mostly cloudy. Chance of light freezing rain and slight chance of snow in the Evening, then chance of snow and slight chance of light freezing rain after midnight. Lows around 15. Temperatures rising into the mid 20s after midnight. South Winds 5 to 15 Mph. Chance of precipitation 50 percent.

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Marine On St Croix Temperature Statistics

December Temperature

L O Simenstad Municipal Airport (8.1 miles)

  • Lowest 14 December, 2025

    -14.8 °F

  • Average December

    14.7 °F

  • Highest 16 December, 2025

    44.8 °F

Climate (2020–Present)

L O Simenstad Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    56.8 °F
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