– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Fri 20 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Fri 20 Feb 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 Fri night. Temperatures will be below freezing (max -5°C on Mon afternoon, min -11°C on Fri night). Winds increasing (strong winds from the SSW on Fri night, extremely windy from the WSW by Mon afternoon).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Tue morning. Temperatures will be below freezing (max -2°C on Thu afternoon, min -10°C on Tue night). Winds decreasing (severe gales from the WSW on Mon night, moderate winds from the WNW by Wed night).
		Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25			Thursday 26
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	cloudy	cloudy	some clouds	some clouds	light snow	light snow	cloudy	light snow	mod. snow	light snow	light snow	snow shwrs	clear	clear	clear	clear	clear	some clouds
km/h	WSW	S	SSW	SW	SSW	SW	SW	WSW	WSW	SW	WSW	W	W	WNW	WNW	WNW	W	WNW	WNW
See all weather maps
cm	5	—	—	—	—	2	5	—	2	7	5	4	4	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-9	-8	-8	-7	-7	-7	-6	-6	-5	-5	-6	-6	-8	-8	-6	-5	-3	-2	-1
min °C	-11	-8	-8	-8	-7	-7	-7	-6	-5	-6	-6	-7	-10	-10	-7	-5	-4	-3	-2
chill °C	-22	-19	-20	-21	-20	-21	-20	-19	-18	-18	-18	-18	-23	-21	-15	-12	-13	-12	-11

Freezing level m	950	1250	1800	1100	2000	2100	1900	2100	2200	2000	1700	1800	950	1200	1550	700	2050	2550	1100
Cloud base (m)	2350	2000	2800	1850	2100	1900	1800	1800	1900	1800	1800	1800	1800		2150

	—	6:56	—	—	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—	6:48	—	—
	—	—	5:44	—	—	5:45	—	—	5:46	—	—	5:49	—	—	5:50	—	—	5:51	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max -5°C on Mon afternoon, min -11°C on Fri night). Winds increasing (strong winds from the SSW on Fri night, extremely windy from the WSW by Mon afternoon).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Tue morning. Temperatures will be below freezing (max -2°C on Thu afternoon, min -10°C on Tue night). Winds decreasing (severe gales from the WSW on Mon night, moderate winds from the WNW by Wed 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	-3° C	-	Calm (0 kph at 0).
Sunriver 34 km SE 1242m alt. 41 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	1° C	-	Light winds from the SSE (8 kph at 167).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	-1° C	Dry and cloudy.	Light winds from the SSW (15 kph at 210).	16 km Low: scattered Mid: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago		-	Calm (0 kph at 280).
Bend 37 km SSE 1297m alt. 1 hour ago	-2° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 44 minutes ago	0° C	-	Calm (2 kph at 163).
Bend wx 39 km E 1118m alt. 1 hour ago	0° C	-	Wind obs. (6 kph from 228 degs) was rejected.
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	-3° C	-	Calm (0 kph at 341).
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	-1° C	-	Calm (5 kph at 228).

* 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.