Alturas Lake Weather Forecast

    • 49
    • 63

    Dense Fog

    • 50
    • 64

    Increasing Clouds

    • 49
    • 66

    Mostly Cloudy

    • 50
    • 68

    Partly Sunny

    • 48
    • 66

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 16 Aug Cascades of Snohomish and Northern King Counties

Mostly cloudy. A chance of snow Showers in the morning. A chance of Showers and a slight chance of Thunderstorms through the day. A chance of snow in the afternoon. Snow level near 9000 feet. Afternoon pass Temperatures in the lower 60s. Light wind. Gusts to 20 Mph in the morning.

Tonight 16 Aug Cascades of Snohomish and Northern King Counties

Mostly cloudy. A chance of Showers in the Evening, then a slight chance of Showers after midnight. Patchy dense fog until early morning. Areas of fog late in the night. Snow level near 8500 feet. Lows in the upper 40s. Light wind. Gusts to 20 Mph in the evening.

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Alturas Lake Temperature Statistics

August Temperature

Ellensburg, Ellensburg Bowers Field (53.4 miles)

  • Lowest 6 August, 2025

    53.7 °F

  • Average August

    73 °F

  • Highest 12 August, 2025

    98.7 °F

Climate (2020–Present)

Ellensburg, Ellensburg Bowers Field (53.4 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    62.9 °F
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