Lost Lake Weather Forecast

    • 52
    • 66

    Increasing Clouds

    • 62
    • 72

    Mostly Cloudy

    • 65
    • 77

    Partly Sunny

    • 63
    • 77

    Partly Sunny

    • 59
    • 74

    Mostly Sunny

    • 52
    • 67

    Mostly Sunny

    • 50
    • 62

    Mostly Sunny

Today 19 Jul Western Chelan County

Sunny. Patchy smoke. Highs in the lower 80s to lower 90s.

Tonight 19 Jul Western Chelan County

Clear in the Evening, becoming partly cloudy. Patchy smoke. Haze overnight. Lows in the mid 50s to mid 60s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

July Temperature

Stampede Pass (41.6 miles)

  • Lowest 1 July, 2026

    39 °F

  • Average July

    55.8 °F

  • Highest 15 July, 2026

    81 °F

Climate (2021–2026)

Stampede Pass (41.6 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    41.6 °F

  • Average High 2021–2026

    48.2 °F
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