Big Lake Weather Forecast

    • 60
    • 97

    Hot

    • 60
    • 91

    Mostly Sunny

    • 56
    • 89

    Chance Rain Showers

    • 51
    • 79

    Chance Rain Showers

    • 49
    • 72

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

Today 4 Sep Lower Slopes of the Eastern Washington Cascades Crest

Partly cloudy. Haze and Areas of smoke. Highs in the mid 80s to lower 90s, except in the lower to mid 90s Valleys. Northwest wind 5 to 10 Mph shifting to the southeast in the afternoon.

Tonight 4 Sep Lower Slopes of the Eastern Washington Cascades Crest

Partly cloudy. Haze and Areas of smoke through the night. Lows in the 60s. West wind 5 to 10 Mph.

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Big Lake Temperature Statistics

September Temperature

Ellensburg, Ellensburg Bowers Field (15.5 miles)

  • Lowest 2 September, 2025

    55 °F

  • Average September

    73.9 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Ellensburg, Ellensburg Bowers Field (15.5 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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