Black Lake Weather Forecast

    • 51
    • 79

    Decreasing Clouds

    • 55
    • 80

    Partly Sunny

    • 52
    • 78

    Partly Sunny

    • 55
    • 84

    Mostly Sunny

    • 55
    • 87

    Partly Sunny

    • 54
    • 83

    Mostly Cloudy

Today 10 Aug Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind.

Tonight 10 Aug Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows near 50. West wind to 10 Mph in the evening becoming light.

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Black Lake Temperature Statistics

August Temperature

Olympia, Olympia Airport (3.7 miles)

  • Lowest 3 August, 2026

    44.7 °F

  • Average August

    65.4 °F

  • Highest 5 August, 2026

    90.6 °F

Climate (2021–2026)

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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