Marine On St Croix Weather Forecast

    • 74
    • 88

    Thunderstorms Likely

    • 68
    • 91

    Rain Showers

    • 63
    • 83

    Chance Thunderstorms

    • 65
    • 84

    Partly Sunny

    • 69
    • 87

    Slight Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

    • 67
    • 88

    Chance Thunderstorms

Today 22 Jul Washington

Warmer. Mostly sunny. Highs in the upper 80s. South Winds 10 to 15 Mph.

Tonight 22 Jul Washington

Partly cloudy. A 50 percent chance of Thunderstorms after midnight. Lows in the mid 70s. South Winds 5 to 15 Mph.

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Marine On St Croix Temperature Statistics

July Temperature

L O Simenstad Municipal Airport (8.1 miles)

  • Lowest 17 July, 2025

    50 °F

  • Average July

    73.6 °F

  • Highest 4 July, 2025

    92.3 °F

Climate (2020–Present)

L O Simenstad Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    56.6 °F
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