Olo Mountain Weather Forecast

    • 50
    • 67

    Becoming Sunny

    • 50
    • 69

    Partly Sunny

    • 47
    • 63

    Partly Sunny

    • 47
    • 62

    Partly Sunny

    • 48
    • 63

    Partly Sunny

    • 47
    • 64

    Partly Sunny

Today 3 Oct Cascades of Snohomish and Northern King Counties

Mostly cloudy in the morning then becoming sunny. Freezing level near 14000 feet. Afternoon pass Temperatures in the mid 60s. Light wind.

Tonight 3 Oct Cascades of Snohomish and Northern King Counties

Mostly clear. Freezing level near 14500 feet. Lows in the mid 40s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Olo Mountain Temperature Statistics

October Temperature

Arlington Municipal Airport (13.7 miles)

  • Lowest 1 October, 2026

    48.9 °F

  • Average October

    56.9 °F

  • Highest 1 October, 2026

    69.1 °F

Climate (2021–2026)

Arlington Municipal Airport (13.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
Get WillyWeather+ to remove ads