Square Lake Weather Forecast

    • 42
    • 55

    Mostly Cloudy

    • 40
    • 47

    Mostly Cloudy

    • 44
    • 60

    Mostly Sunny

    • 47
    • 65

    Partly Sunny

    • 44
    • 61

    Partly Sunny

    • 43
    • 55

    Chance Rain Showers

Today 6 Sep Western Chelan County

Partly cloudy. Highs in the upper 60s to upper 70s.

Tonight 6 Sep Western Chelan County

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Lake Temperature Statistics

September Temperature

Stampede Pass (27.3 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    47 °F

  • Highest 1 September, 2026

    61 °F

Climate (2021–2026)

Stampede Pass (27.3 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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