Mount Si
Weather Forecast, United States

Issued: 3 am Sat 13 Dec Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 35mm), mostly on Mon morning. Becoming colder with a light covering of snow ,mostly falling on Mon night. Freeze-thaw conditions (max 11°C on Sat morning, min -1°C on Mon night). Winds increasing (moderate winds from the SSW on Sat afternoon, severe gales from the SW by Mon afternoon).

Mount Si Weather (Days 3-6):

Heavy rain (total 30mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Tue morning, min -4°C on Tue night). Winds increasing (strong winds from the SW on Tue morning, gales from the WSW by Tue 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.