– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Sun 14 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 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 A heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 1°C on Sun morning, min -15°C on Tue night). Winds increasing (near gales 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 afternoon. Temperatures will be below freezing (max -2°C on Wed night, min -16°C on Fri night). Mainly extremely windy.
	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

	some clouds	some clouds	snow shwrs	light snow	light snow	cloudy	cloudy	clear	heavy snow	snow shwrs	some clouds	heavy snow	heavy snow	heavy snow	heavy snow	heavy snow	heavy snow	snow shwrs
km/h	WSW	WSW	WSW	WSW	WSW	WSW	W	WSW	WSW	W	W	WSW	WSW	WSW	WSW	W	W	W
See all weather maps
cm	—	—	2	1	5	—	—	—	36	4	—	12	27	46	59	23	12	4
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	1	-1	0	0	-2	-4	-4	-5	-4	-9	-7	-2	-2	-3	-4	-8	-12	-13
min°C	0	-1	-2	0	-5	-5	-4	-5	-15	-14	-7	-9	-3	-5	-7	-10	-15	-16
chill°C	-9	-10	-13	-11	-17	-17	-16	-16	-32	-30	-20	-21	-16	-18	-21	-25	-31	-32

Freezing level (m)	3350	3050	3050	3150	2800	2150	2400	2350	2550	1150	1050	1150	2750	2550	2150	1600	1200	800
Cloud base (m)	6550	3150	2750	1950	1800	2000	2000	1800	1800	1850	1800	2000	1800	1800	1800	1800	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: A heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 1°C on Sun morning, min -15°C on Tue night). Winds increasing (near gales 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 afternoon. Temperatures will be below freezing (max -2°C on Wed night, min -16°C on Fri night). Mainly extremely windy.

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	Dry	Calm (0 kph at 115).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 115).
Sunriver 34 km SE 1242m alt. 2 hours ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	9° C	Dry	Light winds from the SSW (13 kph at 209).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	4° C	Clear	Light winds from the SSW (15 kph at 200).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 33 minutes ago	11° C	Dry	Calm (5 kph at 298).
Bend 37 km SSE 1297m alt. 35 minutes ago		-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	7° C	Dry	Calm (2 kph at 167).
Bend wx 39 km E 1118m alt. 1 hour ago	8° C	Dry	Light winds from the SW (6 kph at 220).
Camp Sherman 39 km NNE 920.5m alt. 55 minutes ago	4° C	Dry	Calm (0 kph at 198).

* 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.