Mount Si
Weather Forecast, United States

Issued: 3 pm Sun 14 Dec Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with heavy rain (total 54mm), heaviest during Sun night. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 9°C on Sun night, min -4°C on Tue night). Winds decreasing (stormy winds from the SW on Mon morning, moderate winds from the SSW by Mon night).

Mount Si Weather (Days 3-6):

Light rain (total 9mm) on Thu morning. Becoming colder with heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 2°C on Thu morning, min -5°C on Fri afternoon). Winds decreasing (gales from the SW on Thu afternoon, light winds from the W by Fri morning).

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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.