– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 4 pm Mon 21 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Mon 21 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Mild temperatures (max 6°C on Mon afternoon, min 3°C on Wed morning). Winds increasing (calm on Mon afternoon, near gales from the SW by Thu morning).											Days 5–7 Weather Summary A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -7°C on Fri morning). Winds decreasing (gales from the WSW on Thu night, light winds from the W by Fri night).
	Mon 21		Tuesday 22			Wednesday 23			Thursday 24			Friday 25			Saturday 26
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	clear	clear	some clouds	some clouds	clear	some clouds	cloudy	mod. snow	snow shwrs	clear	some clouds	cloudy	some clouds	some clouds
Cloud base (m)		7150	6450			6650	6300	6800		6500	1850	1850		6750	4800	4950	4350
km/h	WSW	WSW	W	WSW	WSW	SW	SSW	SW	SW	SSW	WSW	WNW	NW	W	SW	SSW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	6	1	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	6	6	5	4	4	3	4	5	5	4	1	-6	-2	2	4	1	1
min °C	6	5	4	4	4	3	3	4	4	3	-3	-7	-5	-2	3	1	-2
chill °C	5	1	0	0	0	-2	-2	-2	-3	-4	-13	-17	-12	-7	0	-4	-10

Freezing level m	4000	3850	3700	3750	3800	3600	3750	3900	3850	3700	2700	2200	2800	3400	3700	3400	3100

	—	—	6:52	—	—	6:54	—	—	6:56	—	—	6:56	—	—	6:58	—	—
	7:06	—	—	7:05	—	—	7:02	—	—	7:00	—	—	6:59	—	—	6:57	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Mild temperatures (max 6°C on Mon afternoon, min 3°C on Wed morning). Winds increasing (calm on Mon afternoon, near gales from the SW by Thu morning).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -7°C on Fri morning). Winds decreasing (gales from the WSW on Thu night, light winds from the W by Fri 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. 1 hour ago	22°C	Dry	Calm (3 kph at 342).
Bend 34 km E 1147m alt. 55 minutes ago	24°C	Dry	Calm (3 kph at 357).
Bend 34 km E 1164.6m alt. 1 hour ago	24°C	Dry	Calm (3 kph at 338).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	22°C	Clear	Light winds from the W (7 kph at 270).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 20 minutes ago	13°C	Dry	Calm (2 kph at 302).
Bend 37 km SSE 1297m alt. 2 hours ago	22°C	Dry	Calm (3 kph at 301).
Bend 37 km ESE 1158m alt. 1 hour ago	24°C	Dry	Calm (0 kph at 333).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	24°C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	14°C	Dry	Moderate winds from the SW (21 kph at 235).
Cloverdale wx 42 km NE 947m alt. 22 minutes ago	25°C	Dry	Calm (0 kph at 172).

* 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.