Oso Weather Forecast

    • 57
    • 90

    Mostly Sunny

    • 52
    • 87

    Mostly Sunny

    • 49
    • 78

    Partly Sunny

    • 49
    • 76

    Mostly Sunny

    • 50
    • 79

    Partly Sunny

    • 51
    • 80

    Partly Sunny

Today 30 Jun Foothills and Valleys of the North Cascades

Sunny. Highs in the 80s. Light wind becoming northwest around 10 Mph in the afternoon.

Tonight 30 Jun Foothills and Valleys of the North Cascades

Mostly clear. Lows in the mid to upper 50s. Northwest wind to 10 Mph in the evening becoming light.

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Oso Temperature Statistics

June Temperature

Arlington Municipal Airport (13 miles)

  • Lowest 2 June, 2025

    42.1 °F

  • Average June

    60.2 °F

  • Highest 8 June, 2025

    86 °F

Climate (2020–Present)

Arlington Municipal Airport (13 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    59.6 °F
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