Mount Si
Weather Forecast, United States

Issued: 3 pm Fri 05 Dec Local Time

Updates in:

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A light covering of new snow mostly falling on Fri night will be washed away by heavy rain (total 26mm) on Mon morning. Freeze-thaw conditions (max 5°C on Mon morning, min 0°C on Fri night). Winds decreasing (gales from the WSW on Fri night, light winds from the SSW by Sat night).

Mount Si Weather (Days 3-6):

Heavy rain (total 51mm), mostly on Mon afternoon. Becoming colder with a light covering of snow, mostly falling on Wed afternoon. Freeze-thaw conditions (max 7°C on Tue afternoon, min -1°C on Mon night). Winds increasing (light winds from the NNW on Mon night, severe 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.