– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 pm Wed 20 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Wed 20 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 10°C on Sat afternoon, min 4°C on Wed night). Wind will be generally light.										Days 5–7 Weather Summary A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 10°C on Sun afternoon, min -5°C on Mon night). Winds increasing (light winds from the W on Sat night, gales from the SW by Mon afternoon).
		Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	some clouds	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	some clouds	light snow	light snow	light snow	some clouds	some clouds
km/h	NE	E	NW	WNW	W	WSW	W	WNW	W	W	WSW	WSW	SW	SW	WSW	WNW	NNW	NNW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	3	1	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	6	6	9	6	7	9	8	8	10	8	8	10	8	5	1	-4	-2	0	0
min °C	4	5	8	4	5	8	6	7	10	6	7	9	5	4	-2	-5	-4	-1	0
chill °C	2	4	8	1	3	6	3	4	8	2	4	5	-2	-3	-12	-14	-11	-7	-5

Freezing level m	3350	3150	3500	3400	3300	3750	3750	3650	3850	3750	3600	3750	3750	2900	2150	1750	2100	2550	2400
Cloud base (m)	6550							7250	7300	9500		9550		6100	1850	1800	1800	1900	1900

	—	5:35	—	—	5:33	—	—	5:33	—	—	5:31	—	—	5:31	—	—	5:30	—	—
	—	—	—	8:31	—	—	8:32	—	—	8:34	—	—	8:35	—	—	8:36	—	—	8:37

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Very mild (max 10°C on Sat afternoon, min 4°C on Wed night). Wind will be generally light.

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 10°C on Sun afternoon, min -5°C on Mon night). Winds increasing (light winds from the W on Sat night, gales from the SW by Mon afternoon).

This table gives the weather forecast for South Sister Volcano at the specific elevation of 2500 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	7° C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 52 minutes ago	9° C	Dry	Calm (0 kph at 355).
Bend 34 km E 1164.6m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 82).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	10° C	Clear	Light winds from the NNE (11 kph at 30).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	6° C	Dry	Calm (3 kph at 198).
Bend 37 km SSE 1297m alt. 34 minutes ago	6° C	Dry	Calm (2 kph at 304).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 284).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 7).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	11° C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	9° C	Dry	Calm (5 kph at 80).

* 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.