– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Sat 16 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 16 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow, heaviest on Sat night. Temperatures will be below freezing (max -3°C on Mon night, min -13°C on Sat morning). Winds decreasing (gales from the WNW on Sat morning, light winds from the WNW by Mon afternoon).									Days 4–6 Weather Summary Mostly dry. Freeze-thaw conditions (max 5°C on Thu afternoon, min -2°C on Tue morning). Winds increasing (calm on Wed afternoon, strong winds from the W by Thu night).
	Saturday 16			Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	light snow	heavy snow	clear	snow shwrs	some clouds	some clouds	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	some clouds
km/h	WNW	WNW	NW	NE	NNE	NE	NNW	WNW	NW	NW	NW	NNW	NNE	E	WNW	NW	WSW	W
See all weather maps
cm	3	3	12	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-13	-11	-11	-10	-8	-5	-4	-4	-3	-2	0	1	0	2	4	4	5	5
min °C	-13	-12	-13	-11	-9	-8	-5	-5	-3	-2	-1	0	-1	1	3	4	4	2
chill °C	-27	-24	-26	-23	-19	-18	-10	-12	-10	-10	-7	-7	-4	1	-1	0	2	-5

Freezing level m	1500	1700	1150	1850	2200	1800	2550	2600	2250	2900	3100	3250	3050	3450	3800	3750	3900	3600
Cloud base (m)	1800	1800	1800	1850	2250		1950	2550	8950	2150		1800		3600				1800

	5:39	—	—	5:37	—	—	5:37	—	—	5:35	—	—	5:35	—	—	5:35	—	—
	—	—	8:27	—	—	8:28	—	—	8:29	—	—	8:30	—	—	8:30	—	—	8:31

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Sat night. Temperatures will be below freezing (max -3°C on Mon night, min -13°C on Sat morning). Winds decreasing (gales from the WNW on Sat morning, light winds from the WNW by Mon afternoon).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 5°C on Thu afternoon, min -2°C on Tue morning). Winds increasing (calm on Wed afternoon, strong winds from the W by Thu 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 324).
Bend 34 km E 1147m alt. 3 hours ago	4° C	Dry	Calm (2 kph at 327).
Bend 34 km E 1164.6m alt. 1 hour ago	4° C	Dry	Calm (3 kph at 57).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	3° C	Dry and cloudy.	Light winds from the S (19 kph at 170).	14 km Low: scattered Mid: broken High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	-1° C	-	Wind obs. (10 kph from 312 degs) was rejected.
Bend 37 km SSE 1297m alt. 34 minutes ago	2° C	-	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 221).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	3° C	Dry	Calm (0 kph at 8).
Deschutes River Woods wx 40 km ESE 1185m alt. 44 minutes ago	4° C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	0° C	-	Moderate winds from the W (26 kph at 267).

* 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.