– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Sun 30 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 30 Aug Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 14°C on Mon afternoon, min 1°C on Wed morning). Winds increasing (calm on Sun afternoon, fresh winds from the SW by Wed morning).											Days 5–7 Weather Summary Moderate rain (total 12mm), heaviest on Wed night giving way to a moderate fall of snow, heaviest on Wed night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -2°C on Thu morning). Winds decreasing (near gales from the WSW on Wed night, calm by Fri morning).
	Sun 30		Monday 31			Tuesday 1			Wednesday 2			Thursday 3			Friday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	light rain	rain shwrs	some clouds	light rain	mod. snow	snow shwrs	some clouds	clear	clear	some clouds	cloudy
Cloud base (m)	8850	9600		5150	8450	9200	2750	1850	2250	2200	1800	1900	2450	2050			2000
km/h	NNW	SSW	S	N	ESE	SSW	SW	WSW	SW	WSW	WSW	WSW	WSW	W	SE	NNE	NW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	10	1	—	—	—	—	—
mm	—	—	—	—	—	—	0.1	0.2	—	5	7	—	—	—	—	—	—
max °C	11	9	12	14	10	8	8	6	2	3	2	-1	0	-1	0	3	2
min °C	10	9	10	14	7	7	7	2	1	3	-1	-2	0	-2	-1	3	-1
chill °C	10	8	8	14	6	5	4	-4	-6	-3	-9	-10	-6	-8	-1	3	-6

Freezing level m	4000	4200	4150	4300	4000	3550	3550	3150	2700	3000	2600	2400	2500	2100	2550	2800	2400

	—	—	6:28	—	—	6:28	—	—	6:30	—	—	6:31	—	—	6:33	—	—
	7:46	—	—	7:45	—	—	7:43	—	—	7:40	—	—	7:39	—	—	7:37	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Very mild (max 14°C on Mon afternoon, min 1°C on Wed morning). Winds increasing (calm on Sun afternoon, fresh winds from the SW by Wed morning).

South Sister Volcano Weather (Days 3-6):

Moderate rain (total 12mm), heaviest on Wed night giving way to a moderate fall of snow, heaviest on Wed night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -2°C on Thu morning). Winds decreasing (near gales from the WSW on Wed night, calm by Fri morning).

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	22°C	Dry	Calm (0 kph at 97).
Bend 34 km E 1147m alt. 48 minutes ago	23°C	Dry	Calm (3 kph at 60).
Bend 34 km E 1164.6m alt. 53 minutes ago	26°C	Dry	Calm (2 kph at 358).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	22°C	Clear	Moderate winds from the N (22 kph at 10).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 46 minutes ago	16°C	Dry	Calm (5 kph at 305).
Bend 37 km SSE 1297m alt. 1 hour ago	22°C	Dry	Calm (2 kph at 92).
Deschutes River Woods wx 40 km ESE 1185m alt. 50 minutes ago	22°C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 2 hours ago	17°C	Dry	Wind obs. (10 kph from 226 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 1 hour ago	24°C	Dry	Calm (3 kph at 79).
La Pine 43 km SSE 1298m alt. 2 hours ago	22°C	Dry	Calm (3 kph at 352).

* 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.