Olo Mountain Weather Forecast

    • 49
    • 65

    Mostly Sunny

    • 46
    • 62

    Partly Sunny

    • 47
    • 59

    Rain Likely

    • 43
    • 51

    Rain Likely

    • 44
    • 54

    Chance Rain

    • 46
    • 55

    Partly Sunny

Today 22 May Cascades of Snohomish and Northern King Counties

Sunny. Freezing level near 9500 feet. Afternoon pass Temperatures in the mid 60s. Light wind.

Tonight 22 May Cascades of Snohomish and Northern King Counties

Partly cloudy in the evening then becoming mostly cloudy. Freezing level near 11000 feet. Lows in the lower 40s. West wind in the Passes around 10 Mph with Gusts to 20 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Olo Mountain Temperature Statistics

May Temperature

Arlington Municipal Airport (13.7 miles)

  • Lowest 18 May, 2026

    42.1 °F

  • Average May

    56.5 °F

  • Highest 12 May, 2026

    84 °F

Climate (2021–Present)

Arlington Municipal Airport (13.7 miles)

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

  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
Get WillyWeather+ to remove ads