Harstine Island Weather Forecast

    • 54
    • 69

    Increasing Clouds

    • 53
    • 69

    Mostly Cloudy

    • 54
    • 70

    Mostly Cloudy

    • 56
    • 75

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

Today 18 Jul Olympia and Southern Puget Sound

Partly sunny. Highs in the upper 60s to mid 70s. Southwest wind 10 to 15 Mph. Gusts to 25 Mph in the afternoon.

Tonight 18 Jul Olympia and Southern Puget Sound

Partly cloudy. Lows in the lower to mid 50s. Southwest wind 10 to 15 Mph.

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Harstine Island Temperature Statistics

July Temperature

Shelton, Shelton Sanderson Field (11.8 miles)

  • Lowest 6 July, 2025

    45.6 °F

  • Average July

    66.1 °F

  • Highest 13 July, 2025

    91.9 °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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