Osborn Bay Lake Weather Forecast

    • 49
    • 73

    Increasing Clouds

    • 53
    • 78

    Partly Sunny

    • 52
    • 77

    Mostly Cloudy

    • 54
    • 81

    Partly Sunny

    • 54
    • 82

    Mostly Cloudy

    • 51
    • 80

    Mostly Sunny

Today 30 May Upper Columbia Basin

Sunny. Highs in the mid 60s to lower 70s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph.

Tonight 30 May Upper Columbia Basin

Partly cloudy. Lows in the lower to mid 40s. West wind 5 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osborn Bay Lake Temperature Statistics

May Temperature

Omak Airport (42.9 miles)

  • Lowest 16 May, 2026

    35.7 °F

  • Average May

    63.2 °F

  • Highest 28 May, 2026

    93 °F

Climate (2021–Present)

Omak Airport (42.9 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    63.1 °F
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