– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 4 pm Thu 10 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Thu 10 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 7°C on Thu afternoon, min -7°C on Sat night). Winds decreasing (severe gales from the W on Thu night, moderate winds from the SW by Fri afternoon).											Days 5–7 Weather Summary Mostly dry. Freeze-thaw conditions (max 4°C on Mon night, min -2°C on Sun afternoon). Winds decreasing (strong winds from the N on Sun afternoon, calm by Mon afternoon).
	Thu 10		Friday 11			Saturday 12			Sunday 13			Monday 14			Tuesday 15
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	rain shwrs	some clouds	cloudy	clear	clear	some clouds	light snow	light snow	some clouds	clear	clear	clear	clear	some clouds	clear	clear
Cloud base (m)	9250	1950		6900		8200	2750	1800	1850	1850				8700	6350
km/h	W	W	W	SW	SW	SW	SW	WNW	NNW	NNW	NW	NW	SE	WSW	WSW	WNW	SE
See all weather maps
cm	—	—	—	—	—	—	—	1	1	—	—	—	—	—	—	—	—
mm	—	0.1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	7	5	4	4	3	0	-3	-6	-4	-1	2	2	2	4	3	2	3
min °C	6	4	3	3	2	-2	-5	-7	-6	-2	-1	2	1	3	3	2	3
chill °C	0	-4	-2	-2	-6	-10	-14	-17	-16	-10	-8	-3	1	-1	-1	0	0

Freezing level m	4150	3800	3750	3700	3600	2850	2550	2000	2400	2950	3350	3500	3550	3650	3600	3500	3600

	—	—	6:41	—	—	6:41	—	—	6:43	—	—	6:43	—	—	6:45	—	—
	7:27	—	—	7:24	—	—	7:22	—	—	7:21	—	—	7:19	—	—	7:17	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A dusting of new snow. Freeze-thaw conditions (max 7°C on Thu afternoon, min -7°C on Sat night). Winds decreasing (severe gales from the W on Thu night, moderate winds from the SW by Fri afternoon).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 4°C on Mon night, min -2°C on Sun afternoon). Winds decreasing (strong winds from the N on Sun afternoon, calm by Mon 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	18°C	Dry	Calm (2 kph at 289).
Bend 34 km E 1147m alt. 48 minutes ago	19°C	Dry	Calm (5 kph at 194).
Bend 34 km E 1164.6m alt. 1 hour ago	19°C	Dry	Calm (0 kph at 65).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	17°C	Clear	Light winds from the SSW (9 kph at 210).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	11°C	Dry	Calm (5 kph at 260).
Bend 37 km SSE 1297m alt. 46 minutes ago	16°C	Dry	Calm (3 kph at 308).
Bend 37 km ESE 1158m alt. 1 hour ago	19°C	Dry	Calm (0 kph at 141).
Deschutes River Woods wx 40 km ESE 1185m alt. 50 minutes ago	18°C	Dry	Calm (2 kph at 199).
Rainbow wx 41 km WSW 410m alt. 52 minutes ago	13°C	Dry	Moderate winds from the SW (21 kph at 234).
Cloverdale wx 42 km NE 947m alt. 1 hour ago	20°C	Dry	Calm (2 kph at 211).

* 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.