Trosper Lake Park Weather Forecast

    • 51
    • 71

    Slight Chance Rain Showers

    • 53
    • 84

    Partly Sunny

    • 52
    • 77

    Mostly Cloudy

Today 15 Sep Olympia and Southern Puget Sound

Mostly sunny. Highs in the mid 60s to lower 70s. Light wind becoming northeast to 10 Mph in the afternoon.

Tonight 15 Sep Olympia and Southern Puget Sound

Mostly clear. Lows near 50. Northeast wind 10 to 15 Mph.

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Trosper Lake Park Temperature Statistics

September Temperature

Olympia, Olympia Airport (1.2 miles)

  • Lowest 8 September, 2025

    48 °F

  • Average September

    63.2 °F

  • Highest 3 September, 2025

    84.9 °F

Climate (2020–Present)

Olympia, Olympia Airport (1.2 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    62.1 °F
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