– Lat/Long: 44.10° N 121.77° W

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

Issued: 3 am Sat 21 Dec 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 Sat morning. Temperatures will be below freezing (max 0°C on Mon afternoon, min -11°C on Sat afternoon). Winds decreasing (stormy winds from the WSW on Sun morning, light winds from the SSW by Mon morning).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -5°C on Wed night, min -12°C on Tue afternoon). Winds increasing (moderate winds from the WNW on Tue night, extremely windy from the WSW by Wed night).
	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

	heavy snow	light snow	some clouds	light snow	mod. snow	snow shwrs	some clouds	cloudy	heavy snow	light snow	mod. snow	snow shwrs	some clouds	cloudy	heavy snow	mod. snow	light snow	heavy snow
km/h	SW	WSW	WSW	WSW	SW	WSW	WNW	S	SW	W	NW	NW	WSW	WSW	WSW	WSW	WSW	W
See all weather maps
cm	12	3	—	2.0	7	12	—	—	12	5	6	1.0	—	—	19	6	4	21
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-7	-11	-5	-4	-5	-5	-1	0	-2	-9	-11	-9	-8	-6	-5	-8	-7	-5
min°C	-10	-11	-11	-4	-6	-10	-3	-2	-7	-10	-12	-11	-8	-6	-9	-10	-8	-6
chill°C	-24	-24	-23	-15	-18	-24	-10	-12	-14	-21	-24	-22	-18	-17	-24	-24	-21	-18

Freezing level (m)	2000	1500	1100	2100	2150	1700	2200	3200	2500	1750	1400	1000	1300	1300	1550	1750	1600	2100
Cloud base (m)	2250	1850	1800	2150	1800	1800	1800	1800	1850	1800	1850	1800	1800	2700	1800	1850	1800	1800

	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:41	—	—	7:41	—	—
	—	4:31	—	—	4:31	—	—	4:32	—	—	4:32	—	—	4:34	—	—	4:35	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max 0°C on Mon afternoon, min -11°C on Sat afternoon). Winds decreasing (stormy winds from the WSW on Sun morning, light winds from the SSW by Mon morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -5°C on Wed night, min -12°C on Tue afternoon). Winds increasing (moderate winds from the WNW on Tue night, extremely windy from the WSW 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 40 minutes ago	6° C	Dry	Calm (3 kph at 257).
Sisters 32 km NE 964m alt. 1 hour ago	4° C	Dry
Bend 34 km E 1147m alt. 2 hours ago	7° C	Dry	Wind obs. (8 kph from 268 degs) was rejected.
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 2 hours ago	7° C	Dry	Light winds from the WSW (10 kph at 248).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	5° C	Light rain .	Fresh winds from the SW (37 kph at 220).	14 km Low: broken Mid: broken High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 38 minutes ago		-	Calm (0 kph at 308).
Bend wx 36 km E 1118m alt. 45 minutes ago	9° C	Dry	Calm (3 kph at 75).
Bend 37 km SSE 1297m alt. 1 hour ago	3° C	Dry	Calm (5 kph at 199).

* 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.