Lake Lillian Weather Forecast

    • 59
    • 77

    Chance Rain Showers

    • 53
    • 71

    Rain Showers Likely

    • 50
    • 57

    Chance Rain Showers

    • 48
    • 58

    Rain Showers Likely

    • 48
    • 54

    Rain Showers

    • 48
    • 57

    Rain Showers Likely

Today 5 Sep Upper Slopes of the Eastern Washington Cascades Crest

Sunny. Areas of smoke through the day. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s to upper 80s.

Tonight 5 Sep Upper Slopes of the Eastern Washington Cascades Crest

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms. Areas of smoke. Lows in the mid 50s to lower 60s. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Lake Lillian Temperature Statistics

September Temperature

Stampede Pass (8.1 miles)

  • Lowest 1 September, 2025

    54 °F

  • Average September

    69.1 °F

  • Highest 2 September, 2025

    87.1 °F

Climate (2020–Present)

Stampede Pass (8.1 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    48.3 °F
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