– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Wed 20 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 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. Freeze-thaw conditions (max 5°C on Fri night, min 0°C on Wed afternoon). Wind will be generally light.											Days 5–7 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 5°C on Sat afternoon, min -9°C on Mon night). Winds increasing (light winds from the SW on Sat afternoon, extremely windy from the WSW by Mon afternoon).
	Wed 20		Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	clear	some clouds	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	some clouds	cloudy	snow shwrs	snow shwrs
km/h	E	NNE	E	WNW	WNW	W	SW	W	WSW	WSW	W	WSW	WSW	WSW	WSW	W	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2	2
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	0	3	1	3	2	1	3	5	4	5	5	3	3	4	1	-3	-5
min °C	0	1	0	2	1	1	2	4	4	4	3	3	2	1	-2	-7	-9
chill °C	0	-2	0	2	-2	-3	0	-1	-1	0	-3	-3	-5	-9	-14	-20	-21

Freezing level m	3150	3400	3200	3550	3450	3350	3700	3850	3750	3850	3750	3600	3500	3550	2700	2000	1850
Cloud base (m)	3200	6850	6000						7200	7150			9400	8750	2150	1800	1800

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

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 5°C on Fri night, min 0°C on Wed afternoon). Wind will be generally light.

South Sister Volcano Weather (Days 3-6):

A dusting of new snow. Freeze-thaw conditions (max 5°C on Sat afternoon, min -9°C on Mon night). Winds increasing (light winds from the SW on Sat afternoon, extremely windy from the WSW 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. 54 minutes ago	18° C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 2 hours ago	19° C	Dry	Calm (5 kph at 53).
Bend 34 km E 1164.6m alt. 22 minutes ago	18° C	Dry	Calm (2 kph at 61).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	16° C	Clear	Light winds from the N (13 kph at 10).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	12° C	Dry	Calm (3 kph at 288).
Bend 37 km SSE 1297m alt. 27 minutes ago	16° C	Dry	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	18° C	Dry	Calm (2 kph at 327).
Camp Sherman 39 km NNE 920.5m alt. 27 minutes ago	17° C	Dry	Calm (0 kph at 7).
Deschutes River Woods wx 40 km ESE 1185m alt. 50 minutes ago	17° C	Dry	Calm (0 kph at 356).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	11° C	Dry	Wind obs. (18 kph from 221 degs) was rejected.

* 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.