Olo Mountain Weather Forecast

    • 47
    • 55

    Mostly Cloudy

    • 43
    • 59

    Partly Sunny

    • 41
    • 58

    Mostly Sunny

    • 42
    • 55

    Partly Sunny

    • 41
    • 48

    Rain/Snow

    • 36
    • 46

    Rain/Snow

    • 34
    • 43

    Snow Likely

Today 3 Feb Cascades of Snohomish and Northern King Counties

Partly sunny. Widespread fog in the morning. Freezing level near 9500 feet. Afternoon pass Temperatures in the upper 30s. Light wind.

Tonight 3 Feb Cascades of Snohomish and Northern King Counties

Mostly cloudy. Freezing level near 9500 feet. Lows in the mid 30s. Light wind.

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Olo Mountain Temperature Statistics

February Temperature

Arlington Municipal Airport (13.7 miles)

  • Lowest 1 February, 2026

    41 °F

  • Average February

    48.7 °F

  • Highest 1 February, 2026

    52 °F

Climate (2021–Present)

Arlington Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.8 °F
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