– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Sun 30 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sun 30 Nov Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 2°C on Sun night, min -8°C on Tue afternoon). Winds decreasing (stormy winds from the NW on Mon night, light winds from the NNW by Wed morning).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -1°C on Wed night, min -12°C on Sat morning). Winds increasing (strong winds from the NNW on Wed night, extremely windy from the W by Thu night).
		Monday 1			Tuesday 2			Wednesday 3			Thursday 4			Friday 5			Saturday 6
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	clear	clear	clear	some clouds	cloudy	some clouds	some clouds	cloudy	cloudy	mod. snow	heavy snow	mod. snow	heavy snow	heavy snow	heavy snow	mod. snow
km/h	NNW	N	NNW	WNW	NW	N	NNE	NNW	NW	NNW	NNW	NW	WNW	W	W	W	W	WNW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	7	13	6	20	14	15	8
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	2	1	0	-3	-6	-7	-5	-4	-4	-1	-1	-1	-2	-6	-8	-9	-11	-12	-9
min°C	0	0	-2	-5	-6	-8	-6	-5	-6	-4	-1	-1	-3	-7	-9	-10	-12	-12	-12
chill°C	-5	-9	-11	-17	-18	-18	-14	-11	-14	-14	-9	-11	-16	-21	-22	-24	-27	-27	-26

Freezing level (m)	3250	3350	3250	2200	1700	1450	1250	2200	2100	2200	2850	2950	2600	2250	1850	1600	1450	1350	1300
Cloud base (m)		3150	5550	1950	1800	1800		6550	3550	2000	1850	2000	1800	1800	1800	1800	1800	1800	1800

	—	7:22	—	—	7:22	—	—	7:24	—	—	7:24	—	—	7:26	—	—	7:26	—	—
	—	—	4:29	—	—	4:29	—	—	4:29	—	—	4:29	—	—	4:28	—	—	4:28	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 2°C on Sun night, min -8°C on Tue afternoon). Winds decreasing (stormy winds from the NW on Mon night, light winds from the NNW by Wed morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -1°C on Wed night, min -12°C on Sat morning). Winds increasing (strong winds from the NNW on Wed night, extremely windy from the W by Thu 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. 2 hours ago	-6° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 48 minutes ago	-6° C	-	Calm (0 kph at 0).
Sunriver 34 km SE 1242m alt. 57 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	-3° C	-	Calm (5 kph at 200).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	-6° C	Clear	Light winds from the S (7 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	-4° C	-	Calm (0 kph at 180).
Bend 37 km SSE 1297m alt. 1 hour ago	-7° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 49 minutes ago	-5° C	-	Calm (0 kph at 325).
Bend wx 39 km E 1118m alt. 2 hours ago	-6° C	-	Calm (0 kph at 225).
Camp Sherman 39 km NNE 920.5m alt. 55 minutes ago	-4° C	-	Calm (0 kph at 21).

* 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.