South Sister Volcano
Weather Forecast, United States

Issued: 9 am Mon 23 Feb Local Time

Updates in:

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Update imminent 

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -3°C on Wed night, min -11°C on Wed morning). Winds decreasing (stormy winds from the WSW on Tue afternoon, fresh winds from the W by Wed afternoon).

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Sat afternoon. Temperatures will be below freezing (max -1°C on Fri afternoon, min -9°C on Sat night). Winds decreasing (gales from the W on Thu afternoon, light winds from the SSW by Sat morning).

This table gives the weather forecast for South Sister Volcano at the specific elevation of 3157 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Sister Volcano. 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 Oregon.