Lost Lake Weather Forecast

    • 49
    • 62

    Mostly Sunny

    • 50
    • 60

    Partly Sunny

    • 52
    • 62

    Chance Rain Showers

    • 53
    • 65

    Chance Rain Showers

    • 55
    • 67

    Partly Sunny

    • 55
    • 68

    Mostly Cloudy

Today 11 Aug Western Chelan County

Sunny. Haze in the morning. Patchy smoke. Highs in the mid 70s to mid 80s. Northwest wind 5 to 15 Mph in the afternoon. Gusts up to 25 Mph.

Tonight 11 Aug Western Chelan County

Partly cloudy. Haze and patchy smoke. Lows in the lower 50s to lower 60s. West wind 5 to 15 Mph in the Evening, becoming light and variable. Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

August Temperature

Stampede Pass (41.6 miles)

  • Lowest 3 August, 2026

    42.1 °F

  • Average August

    59.3 °F

  • Highest 5 August, 2026

    80.1 °F

Climate (2021–2026)

Stampede Pass (41.6 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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