South Sister Volcano
Weather Forecast, United States

Issued: 4 am Thu 28 May 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: Light rain (total 5mm) on Thu afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 4°C on Thu morning, min -5°C on Sat morning). Winds decreasing (strong winds from the NNW on Fri morning, light winds from the W by Sat afternoon).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 6°C on Tue afternoon, min -1°C on Sun morning). Winds increasing (calm on Mon afternoon, strong winds from the SSW by Tue night).

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.