Black Lake Weather Forecast

    • 51
    • 71

    Rain

    • 52
    • 68

    Rain Likely

    • 48
    • 69

    Mostly Cloudy

    • 49
    • 73

    Mostly Sunny

    • 52
    • 79

    Sunny

    • 53
    • 81

    Mostly Sunny

Today 12 Sep Lowlands of Lewis and Southern Thurston Counties

Mostly cloudy. Highs near 70. Light wind.

Tonight 12 Sep Lowlands of Lewis and Southern Thurston Counties

Cloudy with a chance of Showers and a slight chance of Thunderstorms in the Evening, then rain after midnight. Patchy fog in the late evening and early morning. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Lows near 50. 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

    60.6 °F

  • Highest 9 September, 2026

    82 °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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