Black Lake Weather Forecast

    • 51
    • 73

    Increasing Clouds

    • 47
    • 72

    Mostly Cloudy

    • 47
    • 70

    Mostly Cloudy

    • 46
    • 64

    Rain Likely

    • 44
    • 64

    Slight Chance Thunderstorms

    • 44
    • 65

    Mostly Cloudy

Today 21 Sep Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Areas of fog in the Morning, then patchy fog late in the morning. Highs in the lower to mid 70s. Light wind.

Tonight 21 Sep Lowlands of Lewis and Southern Thurston Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. Light wind.

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Black Lake Temperature Statistics

September Temperature

Olympia, Olympia Airport (3.7 miles)

  • Lowest 16 September, 2026

    41.6 °F

  • Average September

    59.8 °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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