Cape Horn Weather Forecast

    • 52
    • 75

    Increasing Clouds

    • 48
    • 71

    Partly Sunny

    • 50
    • 74

    Mostly Sunny

    • 56
    • 69

    Rain Likely

    • 50
    • 68

    Chance Rain

    • 51
    • 70

    Partly Sunny

Today 17 Sep Olympia and Southern Puget Sound

Sunny. Highs in the 70s. Southwest wind to 10 Mph becoming west around 10 Mph in the afternoon.

Tonight 17 Sep Olympia and Southern Puget Sound

Partly cloudy. Lows in the upper 40s to mid 50s. West wind to 10 Mph in the evening becoming light.

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Cape Horn Temperature Statistics

September Temperature

Shelton, Shelton Sanderson Field (8.7 miles)

  • Lowest 15 September, 2025

    50 °F

  • Average September

    62.3 °F

  • Highest 3 September, 2025

    84 °F

Climate (2020–Present)

Shelton, Shelton Sanderson Field (8.7 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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