Millersylvania State Park Weather Forecast

    • 49
    • 69

    Mostly Cloudy

    • 45
    • 67

    Partly Sunny

    • 43
    • 59

    Rain Showers

    • 41
    • 60

    Rain Showers Likely

    • 46
    • 69

    Mostly Cloudy

    • 49
    • 65

    Chance Rain Showers

    • 48
    • 69

    Chance Rain Showers

Today 3 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. A slight chance of rain in the evening. A slight chance of rain late in the night. Lows near 50. West wind 10 to 15 Mph becoming southwest after midnight.

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Millersylvania State Park Temperature Statistics

June Temperature

Olympia, Olympia Airport (3.7 miles)

  • Lowest 1 June, 2026

    39.9 °F

  • Average June

    59 °F

  • Highest 1 June, 2026

    78.1 °F

Climate (2021–Present)

Olympia, Olympia Airport (3.7 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.2 °F
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