– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 pm Fri 15 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Fri 15 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -5°C on Sun night, min -13°C on Sat morning). Winds decreasing (severe gales from the W on Fri night, light winds from the NNW by Mon morning).										Days 5–7 Weather Summary Mostly dry. Freeze-thaw conditions (max 5°C on Thu afternoon, min -4°C on Mon night). Winds decreasing (fresh winds from the NW on Tue night, light winds from the SW by Thu afternoon).
		Saturday 16			Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. snow	snow shwrs	light snow	mod. snow	clear	snow shwrs	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear
km/h	W	WNW	WNW	NW	NNE	NNE	NE	NNW	WNW	NW	NNW	NW	NW	N	NE	NNW	WNW	SW	W
See all weather maps
cm	6	3	3	10	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-8	-13	-11	-12	-10	-8	-5	-5	-5	-3	-3	-1	0	0	2	4	3	5	5
min °C	-12	-13	-12	-13	-10	-9	-8	-5	-5	-4	-4	-1	0	0	1	3	3	4	4
chill °C	-26	-27	-25	-26	-22	-19	-18	-10	-9	-12	-12	-6	-7	-6	-1	-2	-2	3	-2

Freezing level m	1500	1500	1650	1000	1850	2250	1800	2500	2600	2150	2750	3100	3200	3150	3450	3750	3650	3900	3800
Cloud base (m)	1800	1800	1800	1800	1850	2400		2000	2650		2150		1750	8000	3550		8400	8500

	—	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 heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -5°C on Sun night, min -13°C on Sat morning). Winds decreasing (severe gales from the W on Fri night, light winds from the NNW by Mon morning).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 5°C on Thu afternoon, min -4°C on Mon night). Winds decreasing (fresh winds from the NW on Tue night, light winds from the SW by Thu afternoon).

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. 52 minutes ago	5° C	Dry	Calm (2 kph at 290).
Bend 34 km E 1147m alt. 38 minutes ago	6° C	Dry	Calm (3 kph at 291).
Bend 34 km E 1164.6m alt. 35 minutes ago	6° C	Dry	Calm (2 kph at 324).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	5° C	Dry and cloudy.	Light winds from the SW.(Wind varies from 190 to 250 degs) (15 kph at 230).	16 km Low: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	0° C	-	Wind obs. (11 kph from 284 degs) was rejected.
Bend 37 km SSE 1297m alt. 43 minutes ago	3° C	Dry	Calm (2 kph at 239).
Bend 37 km ESE 1158m alt. 51 minutes ago	6° C	Dry	Calm (0 kph at 215).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 40).
Deschutes River Woods wx 40 km ESE 1185m alt. 36 minutes ago	5° C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 47 minutes ago	2° C	-	Light winds from the NNW (19 kph at 338).

* 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.