Olo Mountain Weather Forecast

    • 55
    • 64

    Mostly Cloudy

    • 53
    • 61

    Rain Likely

    • 53
    • 67

    Partly Sunny

    • 53
    • 66

    Mostly Cloudy

    • 50
    • 66

    Partly Sunny

    • 51
    • 68

    Mostly Sunny

Today 25 Jul Cascades of Snohomish and Northern King Counties

Mostly sunny. A slight chance of rain late in the afternoon. Snow level near 9500 feet. Afternoon pass Temperatures in the upper 60s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 25 Jul Cascades of Snohomish and Northern King Counties

Mostly cloudy. A chance of snow in the evening. A slight chance of rain. A slight chance of snow late in the evening. Snow level near 9500 feet. Lows in the upper 40s. West wind in the Passes around 10 Mph in the evening becoming light. Gusts to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Olo Mountain Temperature Statistics

July Temperature

Arlington Municipal Airport (13.7 miles)

  • Lowest 13 July, 2026

    44.6 °F

  • Average July

    63.5 °F

  • Highest 22 July, 2026

    93 °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

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
Get WillyWeather+ to remove ads