Lost Lake Weather Forecast

    • 40
    • 49

    Decreasing Clouds

    • 45
    • 62

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

    • 41
    • 56

    Partly Sunny

    • 39
    • 53

    Chance Rain Showers

    • 40
    • 51

    Chance Rain Showers

Today 7 Sep Western Chelan County

Mostly cloudy. A chance of rain Showers in the afternoon. Highs in the lower 60s to lower 70s. Chance of precipitation 20 percent.

Tonight 7 Sep Western Chelan County

Mostly cloudy. Lows in the mid 40s to mid 50s. Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

September Temperature

Stampede Pass (41.6 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    47 °F

  • Highest 1 September, 2026

    61 °F

Climate (2021–2026)

Stampede Pass (41.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
Get WillyWeather+ to remove ads