– Lat/Long: 44.10° N 121.77° W

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

Issued: 4 pm Tue 01 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Drizzle on Tue afternoon followed by colder weather and a heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 7°C on Tue afternoon, min -2°C on Wed night). Winds increasing (light winds from the SW on Tue afternoon, near gales from the WSW by Wed afternoon).											Days 5–7 Weather Summary Moderate rain (total 14mm), heaviest on Sat night. Freeze-thaw conditions (max 8°C on Sun afternoon, min -1°C on Fri afternoon). Wind will be generally light.
	Tue 1		Wednesday 2			Thursday 3			Friday 4			Saturday 5			Sunday 6
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	risk tstorm	rain shwrs	cloudy	mod. snow	mod. snow	some clouds	some clouds	mod. snow	light snow	some clouds	some clouds	clear	rain shwrs	rain shwrs	clear	some clouds	rain shwrs
Cloud base (m)	2250	2050	2200	1800	1800	2100	2950	1800	1800	1850	2750		3800	3000	6850	3400	4300
km/h	SW	SW	SW	SW	SW	SW	WSW	SW	WSW	SW	SSW	SE	SE	S	SE	SE	E
See all weather maps
cm	—	—	—	6	7	—	—	9	2	—	—	—	—	—	—	—	—
mm	1.6	0.2	—	—	—	—	—	—	—	—	—	—	0.4	12	—	—	0.7
max °C	7	4	1	2	1	-1	1	-1	-2	1	1	4	5	3	5	8	6
min °C	6	0	0	1	-2	-2	1	-2	-2	-1	1	2	5	3	3	7	5
chill °C	2	-7	-8	-6	-10	-10	-4	-6	-9	-5	-2	-3	2	0	1	4	2

Freezing level m	3350	2750	2700	2700	2400	2350	2600	2150	2250	2600	2750	3050	3200	3000	3150	3450	3500

	—	—	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: Drizzle on Tue afternoon followed by colder weather and a heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 7°C on Tue afternoon, min -2°C on Wed night). Winds increasing (light winds from the SW on Tue afternoon, near gales from the WSW by Wed afternoon).

South Sister Volcano Weather (Days 3-6):

Moderate rain (total 14mm), heaviest on Sat night. Freeze-thaw conditions (max 8°C on Sun afternoon, min -1°C on Fri afternoon). Wind will be generally light.

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. 1 hour ago	14°C	Dry	Calm (2 kph at 262).
Bend 34 km E 1147m alt. 50 minutes ago	14°C	Dry	Calm (0 kph at 215).
Bend 34 km E 1164.6m alt. 55 minutes ago	14°C	Dry	Calm (2 kph at 103).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	13°C	Clear	Light winds from the S (17 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	8°C	Dry	Light winds from the WNW (8 kph at 301).
Bend 37 km SSE 1297m alt. 51 minutes ago	12°C	Dry	Calm (5 kph at 0).
Deschutes River Woods wx 40 km ESE 1185m alt. 54 minutes ago	14°C	Dry	Calm (3 kph at 230).
Rainbow wx 41 km WSW 410m alt. 58 minutes ago	9°C	Dry	Wind obs. (11 kph from 217 degs) was rejected.
Cloverdale wx 42 km NE 947m alt. 2 hours ago	16°C	Dry	Calm (5 kph at 280).
La Pine 43 km SSE 1298m alt. 3 hours ago	16°C	Dry	Calm (3 kph at 262).

* 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.