Osborn Bay Lake Weather Forecast

    • 46
    • 76

    Chance Rain

    • 43
    • 63

    Chance Rain

    • 42
    • 55

    Rain Likely

    • 37
    • 57

    Slight Chance Rain

    • 38
    • 62

    Partly Sunny

    • 39
    • 64

    Partly Sunny

Today 10 Oct Upper Columbia Basin

Partly sunny with a 20 percent chance of rain Showers. Highs in the lower to mid 70s. South wind 5 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 10 Oct Upper Columbia Basin

Partly cloudy with a 20 percent chance of rain Showers. Lows in the lower to mid 40s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osborn Bay Lake Temperature Statistics

October Temperature

Omak Airport (42.9 miles)

  • Lowest 7 October, 2025

    39 °F

  • Average October

    56.2 °F

  • Highest 7 October, 2025

    73 °F

Climate (2020–Present)

Omak Airport (42.9 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    62.7 °F
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