– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Mon 20 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 20 Jul Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 12°C on Tue afternoon, min 7°C on Mon afternoon). Winds increasing (calm on Wed morning, strong winds from the S by Wed night).											Days 5–7 Weather Summary Mostly dry. Very mild (max 12°C on Fri night, min 6°C on Sat morning). Winds increasing (light winds from the SSE on Thu afternoon, gales from the SSW by Fri night).
	Mon 20		Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	clear	rain shwrs	some clouds	some clouds	mod. rain	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)	3250	5400	5050	3100	6300	5000	2400
km/h	W	SW	SSW	NW	WSW	SSE	ESE	S	SSW	S	SSW	SSW	SSW	SSW	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	0.5	—	—	5	3	—	—	—	—	—	—	—	—	—
max °C	8	10	10	12	11	11	12	12	11	10	11	8	10	12	6	8	9
min °C	7	9	10	11	11	11	12	10	8	10	8	7	9	7	6	6	7
chill °C	6	7	8	9	10	11	10	8	4	8	3	3	6	1	0	1	2

Freezing level m	4550	4800	4800	4850	4800	4800	4850	4850	4450	4650	4600	4400	4650	4550	4150	4400	4450

	—	—	5:43	—	—	5:43	—	—	5:45	—	—	5:46	—	—	5:47	—	—
	—	8:44	—	—	8:43	—	—	8:42	—	—	8:40	—	—	8:39	—	—	8:38

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Light rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 12°C on Tue afternoon, min 7°C on Mon afternoon). Winds increasing (calm on Wed morning, strong winds from the S by Wed night).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Very mild (max 12°C on Fri night, min 6°C on Sat morning). Winds increasing (light winds from the SSE on Thu afternoon, gales from the SSW 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. 2 hours ago	27° C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 1 hour ago	27° C	Dry	Wind obs. (6 kph from 20 degs) was rejected.
Bend 34 km E 1164.6m alt. 2 hours ago	28° C	Dry	Calm (5 kph at 326).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	27° C	Clear	Light winds from the S (6 kph at 190).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	23° C	Dry	Calm (3 kph at 352).
Bend 37 km SSE 1297m alt. 59 minutes ago	26° C	Dry	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	28° C	Dry	Calm (0 kph at 303).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	28° C	Dry	Calm (2 kph at 8).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	28° C	Dry	Calm (3 kph at 242).
Rainbow wx 41 km WSW 410m alt. 2 hours ago	27° C	Dry	Light winds from the W (18 kph at 281).

* 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.