– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Fri 02 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Fri 02 Jan Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -9°C on Mon morning). Winds decreasing (stormy winds from the SSW on Sat night, moderate winds from the WSW by Mon morning).											Days 5–7 Weather Summary A heavy fall of snow, heaviest during Wed morning. Temperatures will be well below freezing (max -6°C on Tue morning, min -13°C on Wed afternoon). Winds increasing (light winds from the W on Mon afternoon, gales from the W by Tue afternoon).
	Fri 2		Saturday 3			Sunday 4			Monday 5			Tuesday 6			Wednesday 7
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	snow shwrs	some clouds	cloudy	light snow	light snow	cloudy	mod. snow	light snow	some clouds	some clouds	some clouds	mod. snow	heavy snow	heavy snow	mod. snow	heavy snow
km/h	S	SSW	SSW	SSW	SW	WSW	SW	SW	WSW	WSW	W	W	W	W	W	WNW	WNW
See all weather maps
cm	—	1	—	—	3	4	—	6	2	—	—	—	6	13	16	6	11
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	1	0	-2	-4	-4	-7	-6	-7	-8	-9	-8	-6	-7	-9	-11	-13	-12
min °C	1	-4	-3	-4	-6	-7	-7	-8	-9	-10	-10	-7	-7	-11	-12	-13	-13
chill °C	-6	-13	-13	-15	-18	-18	-18	-16	-18	-18	-18	-17	-19	-24	-25	-26	-26

Freezing level m	2750	2500	2050	1950	1850	1450	1500	1300	1300	1100	400	1000	950	950	900	650	550
Cloud base (m)	1950	2100	1800	1850	1800	1850	1800	1800	1850	1800	1800	1800	2050	1800	1800	1800	1800

	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—
	4:39	—	—	4:40	—	—	4:42	—	—	4:43	—	—	4:44	—	—	4:45	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -9°C on Mon morning). Winds decreasing (stormy winds from the SSW on Sat night, moderate winds from the WSW by Mon morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Wed morning. Temperatures will be well below freezing (max -6°C on Tue morning, min -13°C on Wed afternoon). Winds increasing (light winds from the W on Mon afternoon, gales from the W by Tue afternoon).

This table gives the weather forecast for South Sister Volcano at the specific elevation of 2500 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	4° C	Dry	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	5° C	Dry	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 52 minutes ago		Dry
Bend 34 km E 1164.6m alt. 45 minutes ago	8° C	Dry	Calm (3 kph at 160).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the SW (7 kph at 220).	16 km Low: broken
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	2° C	-	Calm (0 kph at 149).
Bend 37 km SSE 1297m alt. 1 hour ago	1° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 32 minutes ago	5° C	Dry	Calm (0 kph at 194).
Camp Sherman 39 km NNE 920.5m alt. 43 minutes ago	1° C	-	Calm (0 kph at 128).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	6° C	Dry	Calm (2 kph at 253).

* 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.