Cornwell Lake Weather Forecast

    • 5
    • 18

    Partly Sunny

    • 1
    • 15

    Mostly Sunny

    • 8
    • 21

    Partly Sunny

    • 9
    • 23

    Partly Sunny

    • 11
    • 24

    Mostly Cloudy

    • 14
    • 27

    Chance Snow

Today 18 Jan Western Okanogan County

Mostly sunny. Highs in the mid to upper 20s. Northwest wind 5 to 15 Mph with Gusts up to 20 Mph in the Morning, becoming light and variable.

Tonight 18 Jan Western Okanogan County

Partly cloudy. Lows 9 to 15.

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Cornwell Lake Temperature Statistics

January Temperature

Omak Airport (44.7 miles)

  • Lowest 13 January, 2025

    18 °F

  • Average January

    30.3 °F

  • Highest 6 January, 2025

    40.6 °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

    62.6 °F
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