Harstine Island Weather Forecast

    • 55
    • 75

    Becoming Sunny

    • 56
    • 80

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 53
    • 73

    Partly Sunny

    • 52
    • 74

    Mostly Sunny

Today 22 Jul Olympia and Southern Puget Sound

Partly sunny in the morning then becoming sunny. Highs in the mid 70s to lower 80s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 22 Jul Olympia and Southern Puget Sound

Mostly clear. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.

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Harstine Island Temperature Statistics

July Temperature

Shelton, Shelton Sanderson Field (11.8 miles)

  • Lowest 3 July, 2025

    45.6 °F

  • Average July

    66.5 °F

  • Highest 13 July, 2025

    93.7 °F

Climate (2020–Present)

Shelton, Shelton Sanderson Field (11.8 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    61.2 °F
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