– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Sat 20 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Sat 20 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 -7°C on Sat night, min -13°C on Sun night). Winds increasing (fresh winds from the WSW on Sun morning, stormy winds from the WSW by Sun night).											Days 5–7 Weather Summary A light covering of new snow mostly falling on Tue afternoon. Temperatures will be well below freezing (max -8°C on Wed night, min -12°C on Thu night). Winds increasing (moderate winds from the SW on Tue night, stormy winds from the SSE by Wed night).
	Sat 20		Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	mod. snow	mod. snow	light snow	heavy snow	snow shwrs	snow shwrs	some clouds	cloudy	light snow	light snow	cloudy	cloudy	cloudy	light snow	cloudy	cloudy
km/h	WSW	WSW	WSW	WSW	WSW	SW	SW	SW	SW	SW	SW	S	SW	SSE	S	SSW	SSW
See all weather maps
cm	—	8	8	5	15	1	2	—	—	2	4	—	—	—	2	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-8	-7	-7	-8	-10	-12	-12	-10	-9	-10	-9	-10	-10	-8	-9	-9	-10
min °C	-8	-8	-7	-9	-13	-12	-12	-11	-9	-10	-10	-10	-10	-9	-9	-10	-12
chill °C	-20	-20	-16	-22	-27	-26	-25	-24	-21	-21	-19	-20	-21	-23	-23	-24	-26

Freezing level m	1150	1400	1850	1700	1300	1300	1400	900	1500	1500	1200	1450	1450	1400	1700	1650	1250
Cloud base (m)	1800	1850	1800	1800	1800	1800	1800	1800	1850	2700	2000	1800	1800	1900	1950	1850	1800

	—	—	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 -7°C on Sat night, min -13°C on Sun night). Winds increasing (fresh winds from the WSW on Sun morning, stormy winds from the WSW by Sun night).

South Sister Volcano Weather (Days 3-6):

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

Live conditions reported by 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 1 hour ago	-3° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	-2° C	-	Calm (5 kph at 241).
Sunriver 34 km SE 1242m alt. 42 minutes ago		Dry
Bend 34 km E 1164.6m alt. 39 minutes ago	3° C	Dry	Light winds from the S (6 kph at 179).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	1° C	-	Light winds from the SW (9 kph at 220).	16 km Low: few
Black Butte Ranch wx 36 km NW 1429m alt. 3 hours ago	-3° C	-	Calm (0 kph at 267).
Bend 37 km SSE 1297m alt. 59 minutes ago	-3° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 30 minutes ago	2° C	-	Calm (0 kph at 148).
Bend wx 39 km E 1118m alt. 52 minutes ago	1° C	-	Calm (5 kph at 175).
Camp Sherman 39 km NNE 920.5m alt. 43 minutes ago	-2° C	-	Calm (0 kph at 109).

* 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.