– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Fri 20 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Fri 20 Mar Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 2°C on Fri morning, min -6°C on Sat morning). Winds decreasing (severe gales from the WSW on Fri night, light winds from the WSW by Sun afternoon).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Mon morning, min -15°C on Wed morning). Winds increasing (moderate winds from the WSW on Mon morning, extremely windy from the WSW by Tue night).
	Friday 20			Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	snow shwrs	some clouds	clear	clear	clear	clear	some clouds	some clouds	cloudy	some clouds	cloudy	light snow	heavy snow	snow shwrs	snow shwrs	snow shwrs
km/h	WSW	WSW	WSW	W	W	WNW	WNW	SW	WSW	SW	WSW	WSW	WSW	WSW	WSW	W	W	WNW
See all weather maps
cm	—	—	2	—	—	—	—	—	—	—	—	—	—	5	18	2	3	4
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	2	1	-5	-5	-2	-2	-2	-1	-1	-2	-1	-1	-2	-3	-13	-14	-9
min °C	2	1	-4	-6	-6	-5	-2	-2	-1	-1	-2	-2	-2	-3	-9	-15	-15	-15
chill °C	-7	-8	-15	-17	-16	-14	-8	-6	-6	-7	-10	-11	-13	-15	-24	-30	-30	-30

Freezing level m	3500	3300	2750	2050	2350	1800	2850	2900	3000	3000	2900	2750	2750	2600	1300	950	1250	300
Cloud base (m)	8400		1900	8450	8600	9000		8550	6650	4800	4600	3000	1950	1800	1800	1800	1800	1800

	7:09	—	—	7:09	—	—	7:07	—	—	7:05	—	—	7:03	—	—	7:01	—	—
	—	7:19	—	—	7:20	—	—	7:21	—	—	7:22	—	—	7:22	—	—	7:24	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A dusting of new snow. Freeze-thaw conditions (max 2°C on Fri morning, min -6°C on Sat morning). Winds decreasing (severe gales from the WSW on Fri night, light winds from the WSW by Sun afternoon).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Mon morning, min -15°C on Wed morning). Winds increasing (moderate winds from the WSW on Mon morning, extremely windy from the WSW by Tue 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. 1 hour ago	4° C	Dry	Calm (2 kph at 237).
Bend 34 km E 1164.6m alt. 2 hours ago	13° C	Dry	Light winds from the S (13 kph at 184).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	2° C	Clear	Light winds from the S (19 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 280).
Bend 37 km SSE 1297m alt. 1 hour ago	-3° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 147).
Bend wx 39 km E 1118m alt. 2 hours ago	8° C	Dry	Calm (2 kph at 229).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	3° C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	12° C	Dry	Wind obs. (10 kph from 315 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 2 hours ago	2° C	-	Calm (0 kph at 237).

* 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.