Lost Lake Weather Forecast

    • 54
    • 69

    Areas Smoke

    • 52
    • 64

    Partly Sunny

    • 54
    • 66

    Mostly Sunny

    • 59
    • 71

    Mostly Sunny

    • 53
    • 70

    Chance Rain Showers

    • 51
    • 58

    Chance Rain Showers

Today 17 Aug Western Chelan County

Mostly cloudy in the morning then clearing. Areas of smoke in the Morning, then patchy smoke in the afternoon. Highs in the lower 80s to lower 90s.

Tonight 17 Aug Western Chelan County

Mostly clear in the Evening, becoming mostly cloudy. Patchy smoke in the evening. Lows in the mid 50s to mid 60s. Gusts up to 20 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

    58.4 °F

  • Highest 5 August, 2026

    80.1 °F

Climate (2021–2026)

Stampede Pass (41.6 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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