Steamboat Island Weather Forecast

    • 50
    • 68

    Mostly Cloudy

    • 48
    • 69

    Partly Sunny

    • 50
    • 76

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

Today 14 Sep Olympia and Southern Puget Sound

Partly sunny. Highs in the mid 60s to lower 70s. South wind around 10 Mph becoming southwest to 10 Mph in the afternoon.

Tonight 14 Sep Olympia and Southern Puget Sound

Mostly cloudy. Patchy fog in the morning. Lows in the mid 40s to lower 50s. West wind to 10 Mph in the evening becoming light.

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Steamboat Island Temperature Statistics

September Temperature

Shelton, Shelton Sanderson Field (9.9 miles)

  • Lowest 9 September, 2026

    43 °F

  • Average September

    59.6 °F

  • Highest 9 September, 2026

    82.9 °F

Climate (2021–2026)

Shelton, Shelton Sanderson Field (9.9 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.2 °F
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