Stewart Lake Weather Forecast

    • 32
    • 37

    Slight Chance Rain/Snow

    • 34
    • 40

    Rain

    • 33
    • 39

    Rain/Snow

    • 32
    • 40

    Chance Rain/Snow

    • 32
    • 38

    Chance Rain/Snow

    • 34
    • 38

    Mostly Cloudy

    • 34
    • 38

    Chance Rain/Snow

Today 7 Dec Okanogan Valley

Mostly cloudy with a chance of rain or snow. Highs in the upper 30s to lower 40s. Chance of precipitation 50 percent.

Tonight 7 Dec Okanogan Valley

Mostly cloudy. A chance of rain overnight. Lows in the 30s. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

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Stewart Lake Temperature Statistics

December Temperature

Omak Airport (13.7 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    32.6 °F

  • Highest 2 December, 2025

    37 °F

Climate (2020–Present)

Omak Airport (13.7 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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