– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Fri 19 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Fri 19 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -6°C on Sat night, min -13°C on Fri night). Winds increasing (near gales from the WSW on Sun morning, stormy winds from the SW by Mon morning).										Days 5–7 Weather Summary A light covering of new snow mostly falling on Thu afternoon. Temperatures will be well below freezing (max -8°C on Wed night, min -12°C on Mon night). Winds increasing (moderate winds from the SSW on Tue night, severe gales from the SSE by Thu morning).
		Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	clear	cloudy	mod. snow	mod. snow	light snow	heavy snow	light snow	snow shwrs	some clouds	cloudy	cloudy	light snow	cloudy	light snow	some clouds	cloudy	light snow	snow shwrs
km/h	W	WSW	WSW	WSW	WSW	WSW	WSW	SW	SW	WSW	SW	SSW	SSW	S	SW	SW	SSE	S	SSW
See all weather maps
cm	3	—	—	9	6	4	22	2	1	—	—	—	3	—	1	—	—	4	7
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-10	-9	-7	-6	-7	-10	-11	-13	-12	-11	-11	-10	-9	-9	-10	-8	-9	-10	-10
min°C	-13	-9	-8	-8	-8	-11	-13	-13	-13	-12	-11	-10	-11	-9	-11	-10	-9	-10	-10
chill°C	-28	-21	-20	-20	-20	-25	-29	-29	-28	-26	-22	-20	-20	-19	-21	-20	-22	-23	-19

Freezing level (m)	900	1100	1200	1500	1750	1550	1250	1250	1300	800	1400	1400	1250	1400	1500	1100	1550	1700	1100
Cloud base (m)	1800	1800	1800	1800	1800	1800	1900	1800	1800	1850	1800	1800	2150	1800	1800	1850	1850	1900	2000

	—	7:37	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—
	—	—	4:30	—	—	4:30	—	—	4:31	—	—	4:31	—	—	4:32	—	—	4:32	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -6°C on Sat night, min -13°C on Fri night). Winds increasing (near gales from the WSW on Sun morning, stormy winds from the SW by Mon morning).

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Thu afternoon. Temperatures will be well below freezing (max -8°C on Wed night, min -12°C on Mon night). Winds increasing (moderate winds from the SSW on Tue night, severe gales from the SSE by Thu 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.

Live conditions reported by 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 45 minutes ago	0° C	-	Calm (0 kph at 95).
Sisters wx 25 km NNE 1022m alt. 47 minutes ago	0° C	-	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 37 minutes ago		Dry
Bend 34 km E 1164.6m alt. 42 minutes ago	0° C	-	Light winds from the ESE (10 kph at 112).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	-2° C	Dry and partly cloudy.	Light winds from the SW (13 kph at 220).	16 km Low: scattered Mid: broken
Black Butte Ranch wx 36 km NW 1429m alt. 33 minutes ago	-3° C	-	Calm (0 kph at 229).
Bend 37 km SSE 1297m alt. 44 minutes ago	-3° C	-	Calm (2 kph at 263).
Bend 37 km ESE 1158m alt. 1 hour ago	1° C	-	Calm (2 kph at 152).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	-1° C	-	Calm (0 kph at 126).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	-1° C	-	Calm (0 kph at —).

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.