Myrtle Lake Weather Forecast

    • 48
    • 73

    Mostly Sunny

    • 48
    • 73

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 45
    • 71

    Partly Sunny

    • 42
    • 67

    Partly Sunny

    • 44
    • 65

    Mostly Cloudy

Today 18 Sep Western Chelan County

Sunny. Highs in the mid 70s to mid 80s.

Tonight 18 Sep Western Chelan County

Mostly clear. Lows in the upper 40s to upper 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Myrtle Lake Temperature Statistics

September Temperature

Wenatchee - Pangborn Memorial Airport (51 miles)

  • Lowest 14 September, 2026

    48 °F

  • Average September

    63.4 °F

  • Highest 1 September, 2026

    84.7 °F

Climate (2021–2026)

Wenatchee - Pangborn Memorial Airport (51 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    61.8 °F
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