– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 3 pm Tue 10 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 pm Tue 10 Nov Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 5°C on Wed morning, min -5°C on Fri morning). Winds increasing (strong winds from the SSW on Wed afternoon, extremely windy from the S by Fri morning).											Days 5–7 Weather Summary A heavy fall of snow, heaviest during Fri afternoon. Temperatures will be below freezing (max -4°C on Sat night, min -11°C on Mon morning). Winds decreasing (gales from the SW on Sun morning, fresh winds from the SW by Sun night).
	Tue 10		Wednesday 11			Thursday 12			Friday 13			Saturday 14			Sunday 15
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	clear	cloudy	some clouds	some clouds	cloudy	some clouds	cloudy	heavy snow	some clouds	cloudy	some clouds	some clouds	light snow	light snow	mod. snow
Cloud base (m)	6050	6250	8300	6700			6500	7700	2350	1950	1850	1850	1900	1850	2150	1850	1800
km/h	WSW	SW	SW	SSW	SSW	SSW	SSW	SSW	S	SSW	SSW	SW	WSW	WSW	SW	SW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	11	—	—	—	—	1	4	6
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	3	5	4	3	2	1	-1	-4	-5	-8	-9	-8	-4	-4	-4	-6
min °C	1	3	4	4	1	2	0	-4	-5	-8	-9	-10	-8	-8	-4	-5	-10
chill °C	-7	-4	-3	-2	-7	-6	-9	-16	-18	-19	-20	-21	-18	-18	-14	-16	-21

Freezing level m	3300	3600	3800	3700	3450	3400	3300	2900	2600	2150	1800	1750	1900	1700	2400	2450	2000

	—	—	6:56	—	—	6:58	—	—	6:58	—	—	7:01	—	—	7:01	—	—
	4:45	—	—	4:44	—	—	4:43	—	—	4:42	—	—	4:40	—	—	4:39	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 5°C on Wed morning, min -5°C on Fri morning). Winds increasing (strong winds from the SSW on Wed afternoon, extremely windy from the S by Fri morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Fri afternoon. Temperatures will be below freezing (max -4°C on Sat night, min -11°C on Mon morning). Winds decreasing (gales from the SW on Sun morning, fresh winds from the SW by Sun 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	6°C	Dry	Calm (0 kph at 247).
Bend 34 km E 1147m alt. 1 hour ago	8°C	Dry	Calm (0 kph at 200).
Bend 34 km E 1164.6m alt. 2 hours ago	13°C	Dry	Light winds from the SSE (10 kph at 165).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 3 hours ago	4°C	Clear	Calm (0 kph at 0).	13 km
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	10°C	Dry	Calm (0 kph at 197).
Bend 37 km SSE 1297m alt. 1 hour ago	2°C	-	Calm (0 kph at 0).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	6°C	Dry	Calm (0 kph at 211).
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	9°C	Dry	Calm (0 kph at 269).
Rainbow wx 41 km WSW 410m alt. 2 hours ago	14°C	Dry	Wind obs. (16 kph from 158 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 3 hours ago	6°C	Dry	Calm (0 kph at 221).

* 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.