South Sister Volcano
Weather Forecast, United States

Issued: 10 am Tue 12 May Local Time

Updates in:

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South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mild at first with light rain (total 5mm) on Tue night followed by colder weather and light fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 7°C on Tue morning, min -10°C on Wed morning). Winds increasing (moderate winds from the SSE on Tue afternoon, severe gales from the WNW by Wed night).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Sat night. Temperatures will be below freezing (max -3°C on Fri morning, min -12°C on Sat night). Winds decreasing (gales from the WNW on Sat night, moderate winds from the NNW by Sun 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.