Mount Si
Weather Forecast, United States

Issued: 3 am Thu 11 Dec Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 24mm), heaviest during Thu morning. Very mild (max 11°C on Sat morning, min 3°C on Thu morning). Winds decreasing (strong winds from the WSW on Thu night, light winds from the SSW by Fri night).

Mount Si Weather (Days 3-6):

Mild with heavy rain (total 44mm), heaviest during Sun night. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 8°C on Mon morning, min -4°C on Tue night). Winds increasing (moderate winds from the SSW on Sun afternoon, severe gales from the SW by Mon night).

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.