– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Wed 17 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Wed 17 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 Thu night. Temperatures will be below freezing (max -2°C on Wed night, min -14°C on Wed morning). Winds decreasing (extremely windy from the WSW on Thu afternoon, near gales from the W by Fri night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -8°C on Sat morning, min -14°C on Sun night). Winds increasing (strong winds from the WSW on Sat morning, extremely windy from the WSW by Sun night).
	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	clear	mod. snow	heavy snow	heavy snow	heavy snow	heavy snow	snow shwrs	snow shwrs	cloudy	cloudy	heavy snow	heavy snow	light snow	heavy snow	mod. snow	light snow	snow shwrs
km/h	W	W	WSW	WSW	WSW	WSW	W	W	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW
See all weather maps
cm	6	—	7	23	16	58	28	4	2	—	—	12	11	3	26	8	4	1
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-12	-6	-2	-2	-3	-4	-11	-13	-8	-8	-9	-8	-10	-12	-12	-13	-12	-10
min°C	-14	-7	-8	-2	-3	-7	-12	-13	-13	-8	-9	-10	-11	-12	-14	-14	-13	-11
chill°C	-29	-20	-20	-14	-17	-21	-28	-29	-27	-19	-22	-23	-26	-28	-31	-31	-29	-25

Freezing level (m)	1200	1150	1150	2850	2700	2350	1450	1050	850	1050	1450	1600	1600	1400	1300	1200	1250	1050
Cloud base (m)	1850	1800	2300	1800	1800	1800	1850	1800	1800	1800	1800	1800	1800	1800	1800	1850	1800	1800

	7:35	—	—	7:37	—	—	7:37	—	—	7:37	—	—	7:39	—	—	7:39	—	—
	—	4:29	—	—	4:30	—	—	4:30	—	—	4:30	—	—	4:30	—	—	4:31	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Wed night, min -14°C on Wed morning). Winds decreasing (extremely windy from the WSW on Thu afternoon, near gales from the W by Fri night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -8°C on Sat morning, min -14°C on Sun night). Winds increasing (strong winds from the WSW on Sat morning, extremely windy from the WSW by Sun 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	2° C	-	Calm (5 kph at 33).
Sisters wx 25 km NNE 1022m alt. 57 minutes ago	3° C	Dry	Calm (2 kph at 105).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	5° C	Dry	Light winds from the SW (14 kph at 221).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	1° C	Clear	Moderate winds from the S (24 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	-2° C	-	Calm (0 kph at 285).
Bend 37 km SSE 1297m alt. 1 hour ago	2° C	-	Calm (3 kph at 256).
Bend 37 km ESE 1158m alt. 57 minutes ago	5° C	Dry	Calm (2 kph at 176).
Camp Sherman 39 km NNE 920.5m alt. 47 minutes ago	3° C	Dry	Calm (0 kph at 16).
Deschutes River Woods wx 40 km ESE 1185m alt. 44 minutes ago	3° C	Dry	Light winds from the WSW (8 kph at 244).

* 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.