Alta Lake State Park Weather Forecast

    • 21
    • 31

    Becoming Sunny

    • 18
    • 31

    Mostly Sunny

    • 22
    • 29

    Partly Sunny

    • 23
    • 32

    Partly Sunny

    • 27
    • 35

    Mostly Cloudy

    • 30
    • 37

    Mostly Cloudy

Today 23 Jan Okanogan Valley

Mostly sunny. Highs in the upper 20s to mid 30s.

Tonight 23 Jan Okanogan Valley

Mostly clear. Lows 18 to 22.

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Alta Lake State Park Temperature Statistics

January Temperature

Omak Airport (35.4 miles)

  • Lowest 1 January, 2026

    19 °F

  • Average January

    33.2 °F

  • Highest 15 January, 2026

    48 °F

Climate (2021–Present)

Omak Airport (35.4 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    62.9 °F
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