– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Thu 21 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Thu 21 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. Mild temperatures (max 5°C on Sat night, min 1°C on Thu afternoon). Winds increasing (calm on Thu afternoon, fresh winds from the W by Sat night).											Days 5–7 Weather Summary A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 5°C on Sun night, min -10°C on Mon night). Winds increasing (moderate winds from the SW on Sun afternoon, severe gales from the SW by Mon afternoon).
	Thu 21		Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	some clouds	some clouds	light snow	light snow	light snow	some clouds
km/h	WSW	NW	W	WSW	WSW	W	W	W	WSW	SW	SW	SW	SW	W	WNW	NW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	4	2	1	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	2	1	3	4	4	4	5	4	4	5	2	-2	-7	-9	-8	-5
min °C	1	1	1	2	4	3	4	4	3	4	3	0	-4	-10	-9	-9	-7
chill °C	1	-4	-3	0	0	-2	0	-2	-3	-1	-5	-9	-15	-21	-19	-19	-16

Freezing level m	3450	3450	3300	3550	3750	3650	3800	3800	3700	3800	3850	3150	2500	1600	1850	1950	1950
Cloud base (m)	4000	9350			8950		7000	9100	9200	9150	9300		2350	1800	1800	1800	1800

	—	—	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. Mild temperatures (max 5°C on Sat night, min 1°C on Thu afternoon). Winds increasing (calm on Thu afternoon, fresh winds from the W by Sat night).

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 5°C on Sun night, min -10°C on Mon night). Winds increasing (moderate winds from the SW on Sun afternoon, severe gales from the SW by Mon 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	10° C	Dry	Calm (0 kph at 245).
Bend 34 km E 1147m alt. 2 hours ago	18° C	Dry	Calm (3 kph at 46).
Bend 34 km E 1164.6m alt. 1 hour ago	15° C	Dry	Calm (0 kph at 62).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	15° C	Clear	Light winds from the N (15 kph at 10).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 45 minutes ago	9° C	Dry	Calm (0 kph at 214).
Bend 37 km SSE 1297m alt. 2 hours ago	12° C	Dry	Calm (2 kph at 320).
Bend 37 km ESE 1158m alt. 59 minutes ago	17° C	Dry	Calm (0 kph at 326).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	17° C	Dry	Calm (0 kph at 177).
Deschutes River Woods wx 40 km ESE 1185m alt. 44 minutes ago	13° C	Dry	Calm (0 kph at —).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	16° C	Dry	Light winds from the NW (10 kph at 311).

* 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.