– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Mon 11 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 11 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A light covering of new snow mostly falling on Wed morning. Freeze-thaw conditions (max 8°C on Mon night, min -7°C on Wed morning). Winds increasing (moderate winds from the SSE on Tue afternoon, stormy winds from the WNW by Wed night).									Days 4–6 Weather Summary A dusting of new snow. Temperatures will be below freezing (max -1°C on Thu morning, min -9°C on Fri night). Winds decreasing (severe gales from the WSW on Fri afternoon, light winds from the WNW by Sat afternoon).
	Monday 11			Tuesday 12			Wednesday 13			Thursday 14			Friday 15			Saturday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	rain shwrs	clear	some clouds	snow shwrs	light snow	light snow	clear	clear	clear	clear	some clouds	snow shwrs	snow shwrs	cloudy	clear	clear
km/h	SW	SW	SSW	SSW	SSE	SSE	W	NW	WNW	NW	W	W	WSW	WSW	WNW	NW	WNW	NW
See all weather maps
cm	—	—	—	—	—	1	3	1	—	—	—	—	—	1	2	—	—	—
mm	—	—	0.2	—	—	0.5	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	6	8	7	7	7	-4	-4	-2	-1	-1	-1	-3	-5	-8	-8	-7	-7
min °C	4	5	7	6	7	0	-7	-6	-4	-2	-2	-2	-5	-7	-9	-8	-8	-7
chill °C	-1	1	2	2	3	-7	-19	-18	-16	-10	-9	-10	-15	-20	-22	-18	-16	-16

Freezing level m	3750	4050	4100	4000	4050	3400	1850	2200	1400	2900	3000	2700	2550	2150	1400	2000	2200	1200
Cloud base (m)	9400	9050		9200	4800	1850	1800	1800	1800			5250	2350	2150	1800	1800	2550	1800

	5:45	—	—	5:43	—	—	5:43	—	—	5:41	—	—	5:41	—	—	5:39	—	—
	—	—	8:21	—	—	8:22	—	—	8:23	—	—	8:24	—	—	8:25	—	—	8:27

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A light covering of new snow mostly falling on Wed morning. Freeze-thaw conditions (max 8°C on Mon night, min -7°C on Wed morning). Winds increasing (moderate winds from the SSE on Tue afternoon, stormy winds from the WNW by Wed night).

South Sister Volcano Weather (Days 3-6):

A dusting of new snow. Temperatures will be below freezing (max -1°C on Thu morning, min -9°C on Fri night). Winds decreasing (severe gales from the WSW on Fri afternoon, light winds from the WNW by Sat 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	20° C	Dry	Calm (3 kph at 79).
Bend 34 km E 1147m alt. 38 minutes ago	19° C	Dry	Calm (5 kph at 106).
Bend 34 km E 1164.6m alt. 1 hour ago	21° C	Dry	Calm (3 kph at 317).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	16° C	Clear	Wind obs. (15 kph from 20 degs) was rejected.	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	15° C	Dry	Calm (3 kph at 205).
Bend 37 km SSE 1297m alt. 1 hour ago	21° C	Dry	Calm (5 kph at 0).
Bend 37 km ESE 1158m alt. 53 minutes ago	21° C	Dry	Calm (3 kph at 316).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	23° C	Dry	Calm (2 kph at 331).
Deschutes River Woods wx 40 km ESE 1185m alt. 39 minutes ago	18° C	Dry	Calm (2 kph at 348).
Rainbow wx 41 km WSW 410m alt. 38 minutes ago	18° C	Dry	Light winds from the W (10 kph at 261).

* 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.