– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Tue 26 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 26 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A light covering of new snow mostly falling on Thu afternoon. Becoming milder with light rain (total 5mm) on Thu night. Freeze-thaw conditions (max 6°C on Wed night, min -8°C on Tue afternoon). Winds decreasing (severe gales from the ENE on Tue night, calm by Thu night).											Days 5–7 Weather Summary Mostly dry. Temperatures will be below freezing (max 0°C on Fri afternoon, min -7°C on Sun afternoon). Winds decreasing (fresh winds from the WNW on Fri afternoon, light winds from the WSW by Sun afternoon).
	Tue 26		Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	snow shwrs	clear	clear	some clouds	some clouds	snow shwrs	rain shwrs	cloudy	cloudy	clear	some clouds	cloudy	clear	clear	clear	clear
km/h	N	NE	ENE	NE	ENE	NE	E	SW	NW	WNW	W	WSW	SSW	WNW	NNW	WSW	WNW
See all weather maps
cm	2	1	—	—	—	—	4	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	1.2	4	—	—	—	—	—	—	—	—	—
max °C	-7	1	3	5	6	6	4	3	0	0	0	-2	-3	-4	-6	-5	-3
min °C	-8	-7	2	5	3	5	2	0	-1	0	-1	-3	-5	-5	-6	-7	-4
chill °C	-14	-15	-6	-1	-4	0	-5	-2	-6	-5	-7	-9	-11	-9	-12	-10	-9

Freezing level m	2200	2500	3550	3850	3900	3850	3450	3250	3050	3200	3150	2700	2650	1450	2400	2550	1800
Cloud base (m)	1950	1800	2250		8900	4750	2100	1800	1900	1850	1900	1900	2700	1900	7100

	—	—	5:30	—	—	5:28	—	—	5:28	—	—	5:28	—	—	5:26	—	—
	—	8:37	—	—	8:37	—	—	8:38	—	—	8:39	—	—	8:40	—	—	8:42

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A light covering of new snow mostly falling on Thu afternoon. Becoming milder with light rain (total 5mm) on Thu night. Freeze-thaw conditions (max 6°C on Wed night, min -8°C on Tue afternoon). Winds decreasing (severe gales from the ENE on Tue night, calm by Thu night).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Temperatures will be below freezing (max 0°C on Fri afternoon, min -7°C on Sun afternoon). Winds decreasing (fresh winds from the WNW on Fri afternoon, light winds from the WSW by Sun 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. 1 hour ago	8° C	Dry	Calm (0 kph at 269).
Bend 34 km E 1147m alt. 2 hours ago	10° C	Dry	Calm (5 kph at 62).
Bend 34 km E 1164.6m alt. 2 hours ago	9° C	Dry	Calm (5 kph at 355).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	7° C	Dry and cloudy.	Light winds from the N (11 kph at 350).	14 km Low: few Mid: broken High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	5° C	Dry	Calm (5 kph at 305).
Bend 37 km SSE 1297m alt. 49 minutes ago	7° C	Dry	Calm (2 kph at 296).
Bend 37 km ESE 1158m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 332).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 343).
Rainbow wx 41 km WSW 410m alt. 36 minutes ago	6° C	Dry	Light winds from the WNW (8 kph at 302).
Cloverdale wx 42 km NE 947m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 216).

* 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.