Square Lake Weather Forecast

    • 60
    • 77

    Increasing Clouds

    • 59
    • 77

    Slight Chance Thunderstorms

    • 54
    • 72

    Slight Chance Thunderstorms

    • 53
    • 65

    Slight Chance Thunderstorms

    • 52
    • 69

    Slight Chance Rain Showers

    • 48
    • 62

    Partly Sunny

    • 49
    • 61

    Partly Sunny

Today 25 Aug Western Chelan County

Sunny. Highs 92 to 102.

Tonight 25 Aug Western Chelan County

Partly cloudy. A chance of rain Showers in the evening. Lows in the mid 60s to mid 70s. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Lake Temperature Statistics

August Temperature

Stampede Pass (27.3 miles)

  • Lowest 8 August, 2025

    43 °F

  • Average August

    57.7 °F

  • Highest 11 August, 2025

    84 °F

Climate (2020–Present)

Stampede Pass (27.3 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.3 °F
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