Mount Si
Weather Forecast, United States

Issued: 3 pm 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 44mm), mostly on Mon morning. Becoming colder with a light covering of snow ,mostly falling on Mon afternoon. Freeze-thaw conditions (max 11°C on Sat afternoon, min -1°C on Mon night). Winds increasing (moderate winds from the SSW on Sat afternoon, severe gales from the WSW by Mon afternoon).

Mount Si Weather (Days 3-6):

Moderate rain (total 18mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Tue afternoon, min -5°C on Fri morning). Winds decreasing (gales from the WSW on Tue night, light winds from the SSE by Thu afternoon).

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.