Black Lake Weather Forecast

    • 49
    • 73

    Increasing Clouds

    • 51
    • 70

    Mostly Cloudy

    • 50
    • 69

    Chance Rain

    • 49
    • 70

    Partly Sunny

    • 50
    • 74

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

Today 10 Sep Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Patchy fog in the morning. Highs in the lower to mid 70s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 10 Sep Lowlands of Lewis and Southern Thurston Counties

Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. West wind to 10 Mph with Gusts to 20 Mph becoming south after midnight.

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Black Lake Temperature Statistics

September Temperature

Olympia, Olympia Airport (3.7 miles)

  • Lowest 8 September, 2026

    45 °F

  • Average September

    60.3 °F

  • Highest 6 September, 2026

    77.6 °F

Climate (2021–2026)

Olympia, Olympia Airport (3.7 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    62.2 °F
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