Lewis Lake Weather Forecast

    • 25
    • 40

    Rain/Snow

    • 22
    • 32

    Blizzard

    • 21
    • 25

    Blizzard

    • 17
    • 27

    Snow

    • 18
    • 23

    Snow

    • 16
    • 24

    Snow

    • 16
    • 23

    Snow Likely

Today 15 Dec Cascades of Whatcom and Skagit Counties

Rain and snow until late Afternoon, then Showers, snow Showers and a slight chance of Thunderstorms late in the afternoon. Snow level near 8000 feet. Some Thunderstorms may produce heavy rainfall late in the afternoon. Precipitation may be heavy at Times. Rainfall Amounts one to three Inches Possible, except higher Amounts possible in Thunderstorms. No snow accumulation.

Tonight 15 Dec Cascades of Whatcom and Skagit Counties

Showers, snow and a slight chance of Thunderstorms in the Evening, then a chance of rain and snow late in the evening. Rain and snow after midnight. Snow level near 4500 feet decreasing to 3000 feet after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Rainfall Amounts a half inch to one inch Possible, except higher Amounts possible in Thunderstorms. Snow accumulation of 1 to 3 Inches.

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Lewis Lake Temperature Statistics

December Temperature

Omak Airport (57.8 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    37.6 °F

  • Highest 9 December, 2025

    51.1 °F

Climate (2020–Present)

Omak Airport (57.8 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    62.9 °F
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