Mason County Recreation Area Weather Forecast

    • 41
    • 66

    Increasing Clouds

    • 43
    • 68

    Partly Sunny

    • 45
    • 65

    Mostly Cloudy

    • 47
    • 70

    Partly Sunny

    • 47
    • 70

    Partly Sunny

    • 47
    • 72

    Partly Sunny

Today 17 May Olympia and Southern Puget Sound

Sunny. Patchy fog in the morning. Highs in the 60s. Light wind.

Tonight 17 May Olympia and Southern Puget Sound

Mostly cloudy. Lows in the 40s. West wind to 10 Mph becoming southwest after midnight.

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Mason County Recreation Area Temperature Statistics

May Temperature

Shelton, Shelton Sanderson Field (2.5 miles)

  • Lowest 9 May, 2026

    39.9 °F

  • Average May

    56.9 °F

  • Highest 3 May, 2026

    84 °F

Climate (2021–Present)

Shelton, Shelton Sanderson Field (2.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.3 °F
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