– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Mon 29 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Mon 29 Dec 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 Mon night, min -4°C on Thu morning). Winds increasing (light winds from the W on Mon night, strong winds from the SW by Thu morning).											Days 5–7 Weather Summary A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be below freezing (max -4°C on Thu afternoon, min -13°C on Sat night). Winds decreasing (stormy winds from the S on Fri afternoon, fresh winds from the SW by Sun morning).
	Mon 29		Tuesday 30			Wednesday 31			Thursday 1			Friday 2			Saturday 3
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	cloudy	light snow	light snow	cloudy	cloudy	snow shwrs	cloudy	mod. snow	light snow
km/h	NNW	WSW	SW	SW	SW	S	W	SW	S	SW	SW	S	S	SW	WSW	SW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	4	5	—	—	4	—	6	3
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	5	5	5	5	3	2	0	-4	-4	-4	-5	-5	-8	-11	-12	-12
min °C	4	4	5	5	4	3	0	-3	-4	-4	-5	-5	-6	-12	-12	-12	-13
chill °C	0	2	2	1	0	0	-4	-9	-11	-14	-16	-17	-18	-26	-26	-26	-26

Freezing level m	3750	3800	3850	3800	3750	3650	3400	2850	2300	2350	2350	2300	2300	1550	1500	1450	1150
Cloud base (m)	9150	8600			8550	6850	6300	5150	1900	1800	1800	1850	1850	1800	1850	1800	1800

	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—
	4:36	—	—	4:37	—	—	4:37	—	—	4:38	—	—	4:39	—	—	4:40	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 5°C on Mon night, min -4°C on Thu morning). Winds increasing (light winds from the W on Mon night, strong winds from the SW by Thu morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be below freezing (max -4°C on Thu afternoon, min -13°C on Sat night). Winds decreasing (stormy winds from the S on Fri afternoon, fresh winds from the SW by Sun 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 1 hour ago	0° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	0° C	-	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 53 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	1° C	-	Calm (0 kph at 49).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	4° C	Clear	Light winds from the N (13 kph at 10).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	-2° C	-	Calm (5 kph at 131).
Bend 37 km SSE 1297m alt. 1 hour ago	2° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 50 minutes ago	2° C	-	Calm (0 kph at 317).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	0° C	-	Calm (0 kph at 131).
Deschutes River Woods wx 40 km ESE 1185m alt. 38 minutes ago	1° C	-	Calm (0 kph at —).

* 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.