Steamboat Island Weather Forecast

    • 56
    • 74

    Rain

    • 49
    • 67

    Rain

    • 51
    • 69

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

    • 49
    • 70

    Chance Rain

    • 48
    • 68

    Mostly Cloudy

    • 48
    • 70

    Partly Sunny

Today 13 Sep Olympia and Southern Puget Sound

Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. Highs in the 70s. Light wind becoming southwest to 10 Mph in the afternoon.

Tonight 13 Sep Olympia and Southern Puget Sound

Mostly cloudy in the Evening, then a slight chance of rain after midnight. Cloudy with rain likely late in the night. Patchy fog late in the night. Rainfall Amounts less than a tenth of an inch likely. Lows in the mid to upper 50s. West wind 10 to 15 Mph becoming southwest after midnight.

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Steamboat Island Temperature Statistics

September Temperature

Shelton, Shelton Sanderson Field (9.9 miles)

  • Lowest 8 September, 2025

    52 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    84 °F

Climate (2020–Present)

Shelton, Shelton Sanderson Field (9.9 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    61.2 °F
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