Marine On St Croix Weather Forecast

    • 67
    • 85

    Partly Sunny

    • 65
    • 83

    Chance Thunderstorms

    • 64
    • 87

    Partly Sunny

    • 61
    • 79

    Chance Thunderstorms

    • 57
    • 74

    Chance Rain Showers

    • 52
    • 70

    Chance Rain Showers

Today 14 Sep Washington

Mostly sunny. Highs in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 14 Sep Washington

Increasing Clouds. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marine On St Croix Temperature Statistics

September Temperature

L O Simenstad Municipal Airport (8.1 miles)

  • Lowest 6 September, 2025

    39.4 °F

  • Average September

    60.5 °F

  • Highest 1 September, 2025

    78.3 °F

Climate (2020–Present)

L O Simenstad Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.6 °F
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