– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Sun 19 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sun 19 Jul Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 11°C on Sun afternoon, min 7°C on Mon afternoon). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the SSW by Mon morning).									Days 4–6 Weather Summary Moderate rain (total 19mm), heaviest on Wed afternoon. Very mild (max 12°C on Wed afternoon, min 7°C on Fri morning). Winds increasing (calm on Wed afternoon, near gales from the WSW by Fri night).
	Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	cloudy	light rain	some clouds	light rain	light rain	risk tstorm	risk tstorm	risk tstorm	rain shwrs	rain shwrs	clear	clear	clear	clear	clear
Cloud base (m)		9450	7050		3050	5950		2950	4300	5000	4050	4100					9100
km/h	SW	SE	SSW	NNE	SSW	SSE	SSW	SSW	SSW	S	WSW	SE	SSW	SSW	SSW	SW	SW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	0.2	—	0.1	1	0.9	0.1	18	0.7	0.1	—	—	—	—	—
max °C	10	11	11	10	8	9	10	11	11	11	12	11	10	10	12	8	7	10
min °C	9	11	11	8	7	8	10	11	11	11	11	11	9	10	9	7	7	8
chill °C	6	10	10	6	3	7	7	10	10	9	11	9	6	8	4	2	2	4

Freezing level m	4450	4750	4850	4650	4550	4700	4750	4850	4800	4800	4900	4750	4500	4700	4700	4300	4450	4500

	5:41	—	—	5:41	—	—	5:43	—	—	5:43	—	—	5:45	—	—	5:46	—	—
	—	—	8:45	—	—	8:44	—	—	8:43	—	—	8:42	—	—	8:40	—	—	8:39

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 11°C on Sun afternoon, min 7°C on Mon afternoon). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the SSW by Mon morning).

South Sister Volcano Weather (Days 3-6):

Moderate rain (total 19mm), heaviest on Wed afternoon. Very mild (max 12°C on Wed afternoon, min 7°C on Fri morning). Winds increasing (calm on Wed afternoon, near gales from the WSW by Fri 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	32° C	Dry	Calm (3 kph at 141).
Bend 34 km E 1147m alt. 2 hours ago	31° C	Dry	Calm (5 kph at 55).
Bend 34 km E 1164.6m alt. 2 hours ago	33° C	Dry	Calm (5 kph at 354).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	30° C	Clear	Light winds from the S (15 kph at 170).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	27° C	Dry	Calm (3 kph at 249).
Bend 37 km SSE 1297m alt. 30 minutes ago	32° C	Dry	Calm (3 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	32° C	Dry	Calm (2 kph at 322).
Camp Sherman 39 km NNE 920.5m alt. 30 minutes ago	34° C	Dry	Wind obs. (6 kph from 1 degs) was rejected.
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	30° C	Dry	Wind obs. (6 kph from 273 degs) was rejected.
Rainbow wx 41 km WSW 410m alt. 1 hour ago	23° C	Dry	Wind obs. (10 kph from 196 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.