Black Lake Weather Forecast

    • 49
    • 69

    Increasing Clouds

    • 48
    • 68

    Partly Sunny

    • 50
    • 77

    Sunny

    • 50
    • 79

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 50
    • 74

    Partly Sunny

Today 14 Sep Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Highs in the mid to upper 60s. South wind to 10 Mph in the morning becoming light.

Tonight 14 Sep Lowlands of Lewis and Southern Thurston Counties

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid to upper 40s. Light wind.

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Black Lake Temperature Statistics

September Temperature

Olympia, Olympia Airport (3.7 miles)

  • Lowest 8 September, 2026

    44.7 °F

  • Average September

    60 °F

  • Highest 9 September, 2026

    82.7 °F

Climate (2021–2026)

Olympia, Olympia Airport (3.7 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    62.2 °F
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