– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 4 pm Thu 22 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Thu 22 Oct 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 2°C on Fri night, min -4°C on Thu night). Winds decreasing (gales from the N on Thu night, light winds from the NNE by Fri night).											Days 5–7 Weather Summary A dusting of new snow. Temperatures will be below freezing (max -2°C on Sun afternoon, min -8°C on Mon night). Winds decreasing (strong winds from the SSW on Sun night, calm by Mon night).
	Thu 22		Friday 23			Saturday 24			Sunday 25			Monday 26			Tuesday 27
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	clear	clear	clear	clear	clear	clear	cloudy	cloudy	cloudy	some clouds	clear	some clouds	light snow	light snow	some clouds	clear
Cloud base (m)	2650	1800	1850			7000	6400	7200	6700	6200	6200	6050	2650	1800	1800	1850	1800
km/h	NW	NNW	N	N	WNW	WSW	WSW	WSW	SW	SSW	S	S	SE	NW	NNW	NNW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	2	1	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-2	-2	-1	0	2	2	2	2	0	-2	-2	-4	-6	-7	-8	-7	-6
min °C	-2	-4	-2	-1	1	2	1	0	0	-2	-3	-5	-6	-8	-8	-8	-7
chill °C	-8	-14	-11	-8	-4	-2	-5	-7	-7	-9	-10	-13	-12	-11	-17	-17	-14

Freezing level m	2800	1250	2650	3150	3350	3450	3300	3300	3100	2950	2700	2550	2200	1850	1850	2000	1550

	—	—	7:31	—	—	7:31	—	—	7:33	—	—	7:35	—	—	7:35	—	—
	6:12	—	—	6:09	—	—	6:08	—	—	6:07	—	—	6:06	—	—	6:04	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 2°C on Fri night, min -4°C on Thu night). Winds decreasing (gales from the N on Thu night, light winds from the NNE by Fri night).

South Sister Volcano Weather (Days 3-6):

A dusting of new snow. Temperatures will be below freezing (max -2°C on Sun afternoon, min -8°C on Mon night). Winds decreasing (strong winds from the SSW on Sun night, calm by Mon 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	8°C	Dry	Calm (5 kph at 277).
Bend 34 km E 1147m alt. 2 hours ago	8°C	Dry	Wind obs. (6 kph from 21 degs) was rejected.
Bend 34 km E 1164.6m alt. 1 hour ago	8°C	Dry	Wind obs. (8 kph from 35 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	5°C	-	Calm (0 kph at 0).	16 km Low: few Mid: few High: few
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	3°C	Dry	Wind obs. (8 kph from 319 degs) was rejected.
Bend 37 km SSE 1297m alt. 2 hours ago	6°C	Dry	Wind obs. (6 kph from 325 degs) was rejected.
Bend 37 km ESE 1158m alt. 2 hours ago	9°C	Dry	Calm (3 kph at 327).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	8°C	Dry	Calm (2 kph at 249).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	4°C	Dry	Fresh winds from the WNW (29 kph at 298).
Cloverdale wx 42 km NE 947m alt. 3 hours ago	9°C	Dry	Calm (2 kph at 285).

* 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.