Mason Lake Weather Forecast

    • 56
    • 84

    Becoming Sunny

    • 52
    • 74

    Partly Sunny

    • 51
    • 72

    Partly Sunny

    • 52
    • 73

    Partly Sunny

    • 52
    • 72

    Partly Sunny

    • 54
    • 77

    Partly Sunny

Today 17 Jul Olympia and Southern Puget Sound

Sunny. Highs in the 80s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 17 Jul Olympia and Southern Puget Sound

Clear. Lows in the 50s. West wind to 10 Mph becoming southwest after midnight.

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Mason Lake Temperature Statistics

July Temperature

Shelton, Shelton Sanderson Field (10.6 miles)

  • Lowest 6 July, 2025

    45.6 °F

  • Average July

    65.8 °F

  • Highest 13 July, 2025

    91.9 °F

Climate (2020–Present)

Shelton, Shelton Sanderson Field (10.6 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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