– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Sat 18 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 18 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -3°C on Sat morning). Winds increasing (light winds from the WSW on Sat morning, near gales from the S by Sun morning).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -2°C on Wed afternoon, min -8°C on Tue night). Winds increasing (light winds from the SSW on Tue afternoon, severe gales from the WNW by Wed morning).
	Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	cloudy	cloudy	some clouds	cloudy	some clouds	cloudy	cloudy	light snow	heavy snow	heavy snow	light snow	clear	clear	clear	clear
km/h	SW	SSE	S	S	SSE	S	SSE	S	SSE	S	SSW	WNW	WNW	NW	NNW	NNE	N	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	2	20	20	5	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-2	-1	0	0	0	1	0	1	1	-4	-4	-6	-7	-2	-2	-5	-5	-4
min °C	-3	-2	-1	0	-1	0	-1	1	-3	-5	-5	-8	-8	-5	-4	-5	-5	-5
chill °C	-8	-8	-8	-8	-8	-7	-9	-6	-12	-14	-11	-21	-22	-17	-13	-12	-14	-15

Freezing level m	2850	3000	3150	3150	3200	3250	3000	3300	3000	2550	2400	1900	1500	2150	1300	2000	2150	1700
Cloud base (m)	7750		4050	4450	5200	4950	4950		1900	2500	2000	1800	1850	1800	1800	1800	1850	1800

	6:18	—	—	6:16	—	—	6:15	—	—	6:13	—	—	6:11	—	—	6:11	—	—
	—	7:53	—	—	7:54	—	—	7:55	—	—	7:58	—	—	7:59	—	—	—	8:00

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -3°C on Sat morning). Winds increasing (light winds from the WSW on Sat morning, near gales from the S by Sun morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -2°C on Wed afternoon, min -8°C on Tue night). Winds increasing (light winds from the SSW on Tue afternoon, severe gales from the WNW by Wed morning).

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	-3° C	-	Calm (0 kph at 0).
Bend 34 km E 1164.6m alt. 1 hour ago	3° C	Dry	Calm (3 kph at 121).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	-1° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	-2° C	-	Calm (0 kph at 160).
Bend 37 km SSE 1297m alt. 1 hour ago	-4° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 2 hours ago	1° C	-	Calm (0 kph at 329).
Bend wx 39 km E 1118m alt. 1 hour ago	-2° C	-	Calm (2 kph at 254).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	-2° C	-	Calm (2 kph at 357).
Rainbow wx 41 km WSW 410m alt. 2 hours ago	6° C	Dry	Light winds from the ESE (14 kph at 118).
Cloverdale wx 42 km NE 947m alt. 2 hours ago	-3° C	-	Calm (0 kph at 215).

* 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.