Marine On St Croix Weather Forecast

    • 30
    • 50

    Sunny

    • 40
    • 58

    Sunny

    • 41
    • 61

    Mostly Sunny

    • 41
    • 62

    Mostly Sunny

    • 47
    • 66

    Partly Sunny

    • 50
    • 68

    Partly Sunny

    • 51
    • 69

    Partly Sunny

Today 16 Oct Washington

Mostly sunny. Highs around 70.

Tonight 16 Oct Washington

Colder, clear. Areas of frost late in the evening. Widespread frost after midnight. Lows in the lower 30s. Northwest Winds up to 5 Mph shifting to the south after midnight.

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Marine On St Croix Temperature Statistics

October Temperature

L O Simenstad Municipal Airport (8.1 miles)

  • Lowest 2 October, 2026

    35.6 °F

  • Average October

    58.9 °F

  • Highest 10 October, 2026

    90.3 °F

Climate (2021–2026)

L O Simenstad Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    57 °F
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