– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 am Sun 14 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 14 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 8mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Sun morning, min -11°C on Tue night). Winds increasing (fresh winds from the WSW on Sun morning, extremely windy from the WSW by Tue night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Thu morning, min -11°C on Wed morning). Winds decreasing (stormy winds from the WSW on Thu morning, fresh winds from the WNW by Fri night).
	Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	rain shwrs	light rain	light snow	cloudy	cloudy	cloudy	heavy snow	snow shwrs	snow shwrs	mod. snow	heavy snow	heavy snow	heavy snow	heavy snow	snow shwrs	some clouds
km/h	WSW	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	W	W	WSW	WSW	WSW	WSW	W	W	W
See all weather maps
cm	—	—	—	—	1	—	—	—	36	5	1	6	14	21	44	20	2	—
mm	—	—	2	1.8	4	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	5	3	3	4	2	-1	-1	-1	1	-9	-6	-1	0	-1	-2	-5	-8	-8
min°C	4	2	3	3	0	-2	-1	-1	-11	-11	-6	-7	0	-1	-3	-8	-9	-10
chill°C	-2	-5	-3	-5	-9	-11	-10	-9	-25	-24	-17	-17	-10	-11	-14	-21	-22	-21

Freezing level (m)	3350	2900	3000	3200	2900	2200	2400	2350	2300	1050	1050	1100	2550	2350	2000	1650	950	0
Cloud base (m)	6500	3350	3400	1850	1800	1850	1900	1850	1800	1850	1800	2100	1800	1800	1800	1850	1800	1800

	7:33	—	—	7:35	—	—	7:35	—	—	7:35	—	—	7:37	—	—	7:37	—	—
	—	4:29	—	—	4:29	—	—	4:29	—	—	4:29	—	—	4:30	—	—	4:30	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Light rain (total 8mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Sun morning, min -11°C on Tue night). Winds increasing (fresh winds from the WSW on Sun morning, extremely windy from the WSW by Tue night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Thu morning, min -11°C on Wed morning). Winds decreasing (stormy winds from the WSW on Thu morning, fresh winds from the WNW by Fri night).

This table gives the weather forecast for South Sister Volcano at the specific elevation of 2500 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. 50 minutes ago	1° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	2° C	-	Calm (0 kph at 254).
Sunriver 34 km SE 1242m alt. 2 hours ago		Dry
Bend 34 km E 1164.6m alt. 41 minutes ago	8° C	Dry	Light winds from the SSE (14 kph at 164).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	-2° C	Clear	Light winds from the S (11 kph at 170).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 46 minutes ago	6° C	Dry	Light winds from the W (6 kph at 266).
Bend 37 km SSE 1297m alt. 2 hours ago		-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 178).
Camp Sherman 39 km NNE 920.5m alt. 3 hours ago	0° C	-
Deschutes River Woods wx 40 km ESE 1185m alt. 40 minutes ago	6° C	Dry	Calm (2 kph at 233).

* 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.