– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Tue 12 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Tue 12 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Mild with light rain (total 5mm) on Tue night Becoming colder with a light covering of snow, mostly falling on Wed morning. Freeze-thaw conditions (max 13°C on Tue afternoon, min -6°C on Wed morning). Winds increasing (light winds from the SSE on Tue afternoon, near gales from the W by Wed morning).									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 1°C on Fri afternoon, min -8°C on Sat night). Winds decreasing (strong winds from the WNW on Sat night, light winds from the NNW by Sun night).
	Tuesday 12			Wednesday 13			Thursday 14			Friday 15			Saturday 16			Sunday 17
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	snow shwrs	mod. snow	some clouds	some clouds	clear	clear	some clouds	clear	some clouds	some clouds	cloudy	cloudy	mod. snow	snow shwrs	some clouds	clear
km/h	S	SSE	SSW	W	W	WNW	W	W	W	W	W	W	W	W	WNW	NNW	NNW	N
See all weather maps
cm	—	—	2	7	—	—	—	—	—	—	—	—	—	—	9	3	—	—
mm	0.1	—	4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	11	13	8	-6	1	0	2	2	0	0	1	-2	-4	-4	-6	-7	-4	-4
min °C	10	12	-1	-6	-1	-1	0	1	-1	-1	-1	-5	-4	-4	-8	-8	-5	-4
chill °C	7	11	-9	-17	-9	-9	-7	-6	-9	-8	-8	-14	-11	-11	-19	-18	-12	-10

Freezing level m	4000	4000	2900	1650	2600	1600	2800	2650	2600	2550	2450	1400	1850	1850	1300	1550	1950	1100
Cloud base (m)	9200	8850	2000	1850	1850	1800			1950		2800	1800	1850	1900	1800	1800	1850	1800

	5:43	—	—	5:43	—	—	5:41	—	—	5:41	—	—	5:39	—	—	5:37	—	—
	—	—	8:22	—	—	8:23	—	—	8:24	—	—	8:25	—	—	8:27	—	—	8:28

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mild with light rain (total 5mm) on Tue night Becoming colder with a light covering of snow, mostly falling on Wed morning. Freeze-thaw conditions (max 13°C on Tue afternoon, min -6°C on Wed morning). Winds increasing (light winds from the SSE on Tue afternoon, near gales from the W by Wed morning).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 1°C on Fri afternoon, min -8°C on Sat night). Winds decreasing (strong winds from the WNW on Sat night, light winds from the NNW by Sun night).

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. 51 minutes ago	19° C	Dry	Calm (0 kph at 56).
Bend 34 km E 1147m alt. 34 minutes ago	21° C	Dry	Calm (5 kph at 248).
Bend 34 km E 1164.6m alt. 1 hour ago	22° C	Dry	Calm (2 kph at 4).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	16° C	Clear	Light winds from the S (7 kph at 180).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 53 minutes ago	17° C	Dry	Calm (5 kph at 191).
Bend 37 km SSE 1297m alt. 1 hour ago	21° C	Dry	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 50 minutes ago	23° C	Dry	Calm (0 kph at 148).
Camp Sherman 39 km NNE 920.5m alt. 51 minutes ago	23° C	Dry	Calm (0 kph at 304).
Deschutes River Woods wx 40 km ESE 1185m alt. 37 minutes ago	20° C	Dry	Calm (3 kph at 333).
Rainbow wx 41 km WSW 410m alt. 38 minutes ago	18° C	Dry	Light winds from the SW (11 kph at 230).

* 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.