– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Mon 25 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 25 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A light covering of new snow mostly falling on Wed morning. Freeze-thaw conditions (max 6°C on Wed afternoon, min -6°C on Mon night). Winds decreasing (near gales from the SW on Mon afternoon, light winds from the NNW by Tue morning).									Days 4–6 Weather Summary Heavy rain (total 21mm), mostly on Thu night. Becoming colder with a light covering of snow, mostly falling on Fri morning. Freeze-thaw conditions (max 9°C on Thu morning, min -2°C on Fri night). Mainly fresh winds.
	Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	rain shwrs	snow shwrs	light snow	snow shwrs	snow shwrs	light snow	some clouds	rain shwrs	some clouds	risk tstorm	heavy rain	light snow	light snow	cloudy	clear	some clouds	clear
km/h	SW	SW	W	NNW	NNW	N	ENE	NE	E	ENE	NNE	NNW	NNW	W	WSW	SW	WSW	W
See all weather maps
cm	—	—	2	1	1	1	2	—	—	—	—	—	5	1	—	—	—	—
mm	—	0.1	—	—	—	—	0.2	—	0.1	—	2	18	—	—	—	—	—	—
max °C	5	3	-3	-5	-4	-2	2	6	6	9	9	6	1	1	1	-1	0	0
min °C	5	-1	-6	-6	-4	-4	0	4	5	7	9	3	1	1	-2	-1	-1	-2
chill °C	-2	-10	-15	-12	-8	-9	-8	-2	0	3	7	-2	-2	-5	-9	-6	-6	-8

Freezing level m	3100	2350	1600	1800	2100	1950	3200	3400	3550	3650	3650	3200	2850	2900	2200	2400	2400	1800
Cloud base (m)	8550	2250	1800	1850	1850	1800	1800	1900	1800		3500	1800	1850	1800	1800	1850	2650	1850

	5:31	—	—	5:30	—	—	5:30	—	—	5:28	—	—	5:28	—	—	5:28	—	—
	—	—	8:36	—	—	8:37	—	—	8:37	—	—	8:38	—	—	8:39	—	—	8:40

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A light covering of new snow mostly falling on Wed morning. Freeze-thaw conditions (max 6°C on Wed afternoon, min -6°C on Mon night). Winds decreasing (near gales from the SW on Mon afternoon, light winds from the NNW by Tue morning).

South Sister Volcano Weather (Days 3-6):

Heavy rain (total 21mm), mostly on Thu night. Becoming colder with a light covering of snow, mostly falling on Fri morning. Freeze-thaw conditions (max 9°C on Thu morning, min -2°C on Fri night). Mainly fresh winds.

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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 218).
Bend 34 km E 1147m alt. 1 hour ago	11° C	Dry	Calm (3 kph at 231).
Bend 34 km E 1164.6m alt. 1 hour ago	12° C	Dry	Light winds from the SSW (11 kph at 207).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	5° C	Clear	Light winds from the S (7 kph at 180).	13 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	8° C	Dry	Calm (3 kph at 291).
Bend 37 km SSE 1297m alt. 2 hours ago	2° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (2 kph at 154).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 15).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	12° C	Dry	Wind obs. (14 kph from 179 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 2 hours ago	9° C	Dry	Calm (0 kph at 252).

* 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.