Mount Si
Weather Forecast, United States

Issued: 9 pm Thu 04 Dec Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with moderate rain (total 19mm) on Fri morning, Becoming colder with a light covering of snow, mostly falling on Sun morning. Freeze-thaw conditions (max 5°C on Fri morning, min 0°C on Fri night). Winds increasing (light winds from the WSW on Thu night, gales from the WSW by Fri night).

Mount Si Weather (Days 3-6):

Mild with heavy rain (total 57mm), heaviest during Mon afternoon. Becoming colder with a moderate fall of snow heaviest on Tue afternoon. Freeze-thaw conditions (max 6°C on Mon afternoon, min -1°C on Tue afternoon). Winds decreasing (severe gales from the SW on Mon afternoon, light winds from the W by Wed 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.