– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Wed 27 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 27 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 29mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 10°C on Thu morning, min -1°C on Fri night). Winds decreasing (strong winds from the ENE on Wed night, light winds from the W by Sat morning).											Days 5–7 Weather Summary Mostly dry. Freeze-thaw conditions (max 9°C on Tue morning, min -1°C on Sat night). Wind will be generally light.
	Wed 27		Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 1
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	risk tstorm	light snow	light snow	cloudy	some clouds	some clouds	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	clear
km/h	NNE	E	NNE	NNW	NNW	NW	WNW	W	W	WSW	NW	NNW	W	WNW	W	W	SW
See all weather maps
cm	—	—	—	—	2	2	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	10	20	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	8	10	8	4	0	2	1	1	1	0	2	4	3	6	8	7
min °C	9	6	8	6	1	0	0	-1	-1	1	-1	0	3	2	4	8	6
chill °C	5	2	4	2	-6	-7	-7	-6	-5	0	-5	-4	1	-1	2	8	3

Freezing level m	3700	3700	3750	3500	2950	2600	3050	2650	2600	2700	2050	2800	2900	3200	3300	3550	3700
Cloud base (m)			5200	2100	1800	1800	1800	1850		3050	2000		3550

	—	—	5:28	—	—	5:28	—	—	5:28	—	—	5:26	—	—	5:26	—	—
	—	8:37	—	—	8:38	—	—	8:39	—	—	8:40	—	—	8:42	—	—	8:43

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Heavy rain (total 29mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 10°C on Thu morning, min -1°C on Fri night). Winds decreasing (strong winds from the ENE on Wed night, light winds from the W by Sat morning).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 9°C on Tue morning, min -1°C on Sat night). Wind will be generally light.

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	23° C	Dry	Calm (2 kph at 47).
Bend 34 km E 1147m alt. 3 hours ago	20° C	Dry	Wind obs. (10 kph from 61 degs) was rejected.
Bend 34 km E 1164.6m alt. 2 hours ago	23° C	Dry	Light winds from the N (8 kph at 11).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	20° C	Clear	Fresh winds from the N (37 kph at 10).	13 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	18° C	Dry	Light winds from the NNE (8 kph at 21).
Bend 37 km SSE 1297m alt. 44 minutes ago	20° C	Dry	Light winds from the N (6 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	22° C	Dry	Wind obs. (13 kph from 331 degs) was rejected.
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	24° C	Dry	Calm (5 kph at 62).
Rainbow wx 41 km WSW 410m alt. 31 minutes ago	13° C	Dry	Wind obs. (24 kph from 230 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 1 hour ago	24° C	Dry	Wind obs. (10 kph from 67 degs) was rejected.

* 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.