– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Sat 21 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Sat 21 Feb Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -4°C on Mon night, min -9°C on Sat morning). Winds decreasing (stormy winds from the SW on Sun morning, strong winds from the SW by Mon night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -3°C on Tue morning, min -11°C on Tue night). Winds decreasing (stormy winds from the WSW on Tue morning, strong winds from the W by Wed afternoon).
	Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25			Thursday 26
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	some clouds	cloudy	light snow	mod. snow	light snow	cloudy	heavy snow	light snow	mod. snow	snow shwrs	clear	some clouds	some clouds	cloudy	clear	clear
km/h	S	SSW	SW	SW	SW	SW	WSW	WSW	SW	WSW	WSW	W	WNW	W	W	W	W	W
See all weather maps
cm	—	—	—	—	2	6	1	—	13	4	9	7	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-7	-7	-6	-7	-6	-6	-6	-5	-4	-3	-6	-10	-10	-6	-4	-5	-5	-5
min °C	-9	-8	-7	-7	-7	-7	-6	-6	-5	-4	-8	-11	-11	-8	-5	-5	-5	-6
chill °C	-21	-20	-20	-21	-20	-20	-19	-18	-15	-16	-22	-24	-22	-18	-15	-14	-15	-18

Freezing level m	1300	1900	1150	2050	2050	1950	2100	2250	2150	2450	2200	1000	1450	1700	800	2200	2250	1150
Cloud base (m)	2050	2600	1800	1850	1900	1800	1800	2050	1800	1800	1800	1850		6650	6100	7150		1750

	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 heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -4°C on Mon night, min -9°C on Sat morning). 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 heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -3°C on Tue morning, min -11°C on Tue night). Winds decreasing (stormy winds from the WSW on Tue morning, 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. 1 hour ago	1° C	-	Calm (2 kph at 286).
Sunriver 34 km SE 1242m alt. 2 hours ago		Dry
Bend 34 km E 1164.6m alt. 2 hours ago	5° C	Dry	Wind obs. (6 kph from 250 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	3° C	Dry and partly cloudy.	Moderate winds from the S (28 kph at 190).	16 km Low: few Mid: scattered
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	3° C	Dry	Calm (2 kph at 137).
Bend 37 km ESE 1158m alt. 59 minutes ago	6° C	Dry	Calm (3 kph at 225).
Bend wx 39 km E 1118m alt. 2 hours ago	5° C	Dry	Calm (3 kph at 124).
Camp Sherman 39 km NNE 920.5m alt. 56 minutes ago	2° C	-	Calm (0 kph at 341).
Deschutes River Woods wx 40 km ESE 1185m alt. 47 minutes ago	4° C	Dry	Calm (0 kph at 44).

* 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.