– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 pm Wed 26 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Wed 26 Mar 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 Fri night. Temperatures will be below freezing (max -1°C on Wed night, min -14°C on Fri night). Winds decreasing (extremely windy from the SW on Thu night, calm by Sat morning).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Mon morning. Temperatures will be well below freezing (max -9°C on Sun afternoon, min -15°C on Mon afternoon). Winds increasing (light winds from the SSW on Sun morning, gales from the W by Mon night).
		Thursday 27			Friday 28			Saturday 29			Sunday 30			Monday 31			Tuesday 1
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	snow shwrs	light snow	heavy snow	snow shwrs	light snow	mod. snow	some clouds	snow shwrs	snow shwrs	cloudy	light snow	snow shwrs	mod. snow	snow shwrs	light snow	some clouds	light snow	snow shwrs
km/h	SSW	SSW	SW	SW	SW	SW	W	NW	SSE	S	SSW	SSW	SSW	WSW	W	W	WSW	SSW	S
See all weather maps
cm	5	3	3	11	7	4	9	—	2.0	1.0	—	4	4	7	4	4	—	3	1.0
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-1	-9	-9	-9	-12	-13	-14	-13	-11	-10	-10	-9	-9	-10	-14	-14	-14	-12	-8
min°C	-8	-9	-9	-11	-13	-13	-14	-14	-12	-11	-11	-10	-11	-13	-15	-15	-14	-13	-11
chill°C	-20	-22	-22	-26	-26	-26	-28	-24	-17	-19	-18	-18	-24	-27	-30	-30	-26	-22	-21

Freezing level (m)	2250	2050	1950	1600	1500	1550	850	1400	1700	1100	1800	1850	1500	1350	1250	800	1450	1700	1250
Cloud base (m)	1850	1850	2100	1800	1800	1800	1800	1800	1900	2000	2500	2000	1800	1850	1800	1800	1800	2050	1900

	—	6:58	—	—	6:56	—	—	6:54	—	—	6:52	—	—	6:50	—	—	6:48	—	—
	—	—	7:27	—	—	7:28	—	—	7:30	—	—	7:30	—	—	7:31	—	—	7:32	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -1°C on Wed night, min -14°C on Fri night). Winds decreasing (extremely windy from the SW on Thu night, calm by Sat morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Mon morning. Temperatures will be well below freezing (max -9°C on Sun afternoon, min -15°C on Mon afternoon). Winds increasing (light winds from the SSW on Sun morning, gales from the W by Mon 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 1022m alt. 54 minutes ago	7° C	Dry	Calm (3 kph at 325).
Sisters 32 km NE 964m alt. 1 hour ago		Dry
Bend 34 km E 1147m alt. 3 hours ago	12° C	Dry	Wind obs. (6 kph from 291 degs) was rejected.
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	8° C	Dry	Calm (2 kph at 34).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	10° C	Clear	Fresh winds from the S (30 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 308).
Bend wx 36 km E 1118m alt. 45 minutes ago	14° C	Dry	Wind obs. (6 kph from 112 degs) was rejected.
Bend 37 km SSE 1297m alt. 1 hour ago	7° C	Dry	Calm (3 kph at 0).
Bend 37 km ESE 1158m alt. 53 minutes ago	11° C	Dry	Calm (0 kph at 162).

* 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.