Mount Si
Weather Forecast, United States

Issued: 3 am Thu 18 Dec Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 34mm), mostly on Thu afternoon. Becoming colder with a light covering of snow ,mostly falling on Fri night. Freeze-thaw conditions (max 8°C on Thu afternoon, min 0°C on Thu night). Winds decreasing (fresh winds from the SW on Thu afternoon, light winds from the S by Sat night).

Mount Si Weather (Days 3-6):

Mild with moderate rain (total 10mm) on Sun afternoon, Becoming colder with a light covering of snow, mostly falling on Sun night. Freeze-thaw conditions (max 4°C on Sun morning, min 0°C on Tue night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Si. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.