– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Sat 21 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Sat 21 Feb Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -3°C on Mon night, min -7°C on Sat afternoon). Winds decreasing (stormy winds from the SW on Sun morning, strong winds from the SW by Mon night).											Days 5–7 Weather Summary A moderate fall of snow, heaviest on Tue night. Temperatures will be below freezing (max -2°C on Thu night, min -11°C on Tue night). Winds decreasing (stormy winds from the WSW on Tue night, strong winds from the W by Wed afternoon).
	Sat 21		Sunday 22			Monday 23			Tuesday 24			Wednesday 25			Thursday 26
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	cloudy	light snow	mod. snow	light snow	light snow	heavy snow	light snow	light snow	snow shwrs	clear	clear	some clouds	clear	clear	some clouds
km/h	SSW	SSW	SW	SW	WSW	WSW	WSW	SW	WSW	WSW	WSW	W	W	W	W	W	W
See all weather maps
cm	—	—	—	4	9	2	1	15	3	4	12	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-7	-6	-7	-6	-7	-6	-5	-3	-4	-5	-9	-7	-7	-4	-4	-4	-2
min °C	-7	-7	-7	-7	-7	-6	-5	-4	-4	-7	-11	-9	-7	-6	-4	-4	-3
chill °C	-19	-20	-21	-20	-20	-19	-16	-13	-16	-20	-26	-21	-18	-17	-15	-14	-13

Freezing level m	1850	1100	2000	1950	1900	2000	2300	2100	2400	2300	1500	1400	1700	1050	2200	2300	1300
Cloud base (m)	2550	1800	1850	1850	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	2500	2600	1950

	—	—	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 heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -3°C on Mon night, min -7°C on Sat afternoon). Winds decreasing (stormy winds from the SW on Sun morning, strong winds from the SW by Mon night).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Tue night. Temperatures will be below freezing (max -2°C on Thu night, min -11°C on Tue night). Winds decreasing (stormy winds from the WSW on Tue night, strong winds from the W by Wed 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. 54 minutes ago	-1° C	-	Calm (0 kph at 0).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 56 minutes ago	4° C	Dry	Calm (3 kph at 104).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	3° C	Dry and partly cloudy.	Light winds from the SW (11 kph at 230).	16 km Low: few Mid: broken
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago		-	Calm (0 kph at 280).
Bend 37 km SSE 1297m alt. 45 minutes ago	2° C	-	Calm (0 kph at 70).
Bend 37 km ESE 1158m alt. 54 minutes ago	2° C	-	Calm (0 kph at 140).
Bend wx 39 km E 1118m alt. 2 hours ago	3° C	Dry	Calm (0 kph at 90).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	0° C	-	Calm (0 kph at 341).
Deschutes River Woods wx 40 km ESE 1185m alt. 41 minutes ago	-1° C	-	Calm (0 kph at 210).

* 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.