Cornwell Lake Weather Forecast

    • 23
    • 28

    Snow Likely

    • 24
    • 30

    Blizzard

    • 21
    • 26

    Snow Likely

    • 22
    • 27

    Snow

    • 24
    • 30

    Snow

    • 23
    • 28

    Snow

    • 22
    • 28

    Snow

Today 4 Dec Western Okanogan County

Mostly cloudy with a chance of rain and mountain snow. Snow level 4500 feet. Highs in the 30s. Chance of precipitation 50 percent.

Tonight 4 Dec Western Okanogan County

Mostly cloudy with a chance of mountain snow. A chance of rain. Snow level 4500 feet. Lows in the upper 20s to lower 30s. Chance of precipitation 50 percent.

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Cornwell Lake Temperature Statistics

December Temperature

Omak Airport (44.7 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    32 °F

  • Highest 2 December, 2025

    37 °F

Climate (2020–Present)

Omak Airport (44.7 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    62.8 °F
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