– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Tue 01 Sep Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Tue 01 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Tue morning, min -6°C on Thu morning). Winds increasing (light winds from the S on Tue morning, gales from the WSW by Wed afternoon).									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 1°C on Sat night, min -5°C on Fri morning). Winds decreasing (strong winds from the S on Fri night, light winds from the ESE by Sun night).
	Tuesday 1			Wednesday 2			Thursday 3			Friday 4			Saturday 5			Sunday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	rain shwrs	some clouds	cloudy	mod. snow	heavy snow	snow shwrs	light snow	heavy snow	light snow	light snow	snow shwrs	some clouds	snow shwrs	snow shwrs	some clouds	light snow	snow shwrs
Cloud base (m)	8250	2350	1850	2250	1850	1800	2050	2350	1800	1800	1800	2750	2800	2650		3400	3200	2300
km/h	S	SSW	SW	SSW	WSW	WSW	SW	SSW	WSW	SW	S	S	SSW	SSE	SSE	SE	ESE	WSW
See all weather maps
cm	—	—	—	—	9	11	1	2	13	1	3	6	—	2	1	—	1	3
mm	—	0.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	3	2	2	-4	-3	-4	-6	-5	-5	-5	-4	-2	-2	-1	1	0	1	0
min °C	2	1	-4	-4	-3	-5	-6	-5	-6	-5	-4	-3	-2	-2	0	-1	0	-2
chill °C	-2	-4	-14	-14	-14	-14	-17	-12	-14	-13	-10	-10	-9	-7	-6	-6	-5	-9

Freezing level m	3500	3350	2750	2650	2650	2400	2400	2500	2250	2400	2550	2650	2900	3050	3300	3000	3250	2900

	6:28	—	—	6:30	—	—	6:31	—	—	6:33	—	—	6:33	—	—	6:35	—	—
	—	7:43	—	—	7:40	—	—	7:39	—	—	7:37	—	—	7:36	—	—	7:34	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Tue morning, min -6°C on Thu morning). Winds increasing (light winds from the S on Tue morning, gales from the WSW by Wed afternoon).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 1°C on Sat night, min -5°C on Fri morning). Winds decreasing (strong winds from the S on Fri night, light winds from the ESE by Sun night).

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	12°C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 49 minutes ago	13°C	Dry	Calm (3 kph at 163).
Bend 34 km E 1164.6m alt. 1 hour ago	14°C	Dry	Wind obs. (8 kph from 179 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	5°C	Clear	Light winds from the SSW (9 kph at 210).	13 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	7°C	Dry	Light winds from the NW (6 kph at 304).
Bend 37 km SSE 1297m alt. 47 minutes ago	9°C	Dry	Calm (0 kph at 0).
Deschutes River Woods wx 40 km ESE 1185m alt. 49 minutes ago	15°C	Dry	Calm (3 kph at 257).
Rainbow wx 41 km WSW 410m alt. 2 hours ago	8°C	Dry	Calm (2 kph at 270).
Cloverdale wx 42 km NE 947m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 254).
La Pine 43 km SSE 1298m alt. 56 minutes ago	9°C	Dry	Calm (2 kph at 221).

* 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.