Mount Si
Weather Forecast, United States

Issued: 4 pm Mon 11 May Local Time

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with moderate rain (total 11mm) on Tue night, Becoming colder with a light covering of snow, mostly falling on Wed morning. Very mild (max 18°C on Tue afternoon, min 1°C on Wed morning). Winds increasing (calm on Mon afternoon, near gales from the WSW by Wed afternoon).

Mount Si Weather (Days 3-6):

Mild at first with light rain (total 8mm) on Thu night followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 5°C on Thu afternoon, min -1°C on Sat night). Winds decreasing (fresh winds from the SW on Fri night, light winds from the SW by Sun morning).

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.