Black Lake Weather Forecast

    • 48
    • 74

    Increasing Clouds

    • 49
    • 76

    Becoming Sunny

    • 47
    • 77

    Partly Sunny

    • 49
    • 75

    Partly Sunny

    • 48
    • 72

    Partly Sunny

    • 48
    • 70

    Mostly Cloudy

    • 49
    • 72

    Slight Chance Rain

Today 18 Sep Lowlands of Lewis and Southern Thurston Counties

Partly sunny with a slight chance of rain. Highs in the mid to upper 60s.

Tonight 18 Sep Lowlands of Lewis and Southern Thurston Counties

Partly cloudy until early morning then becoming mostly cloudy. 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 16 September, 2026

    43 °F

  • Average September

    59.9 °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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