– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Tue 30 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Tue 30 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 6°C on Tue afternoon, min -4°C on Thu night). Winds increasing (light winds from the SW on Wed morning, gales from the WSW by Thu night).											Days 5–7 Weather Summary A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -3°C on Fri afternoon, min -9°C on Sun night). Winds decreasing (stormy winds from the SSW on Fri night, moderate winds from the SSW by Mon morning).
	Tue 30		Wednesday 31			Thursday 1			Friday 2			Saturday 3			Sunday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	clear	some clouds	some clouds	light snow	light snow	snow shwrs	cloudy	some clouds	snow shwrs	mod. snow	some clouds	cloudy	light snow	mod. snow	snow shwrs
km/h	WSW	SSW	SW	WSW	SSW	SSW	WSW	SW	SSW	SSW	SSW	S	SSW	SSW	S	S	WSW
See all weather maps
cm	—	—	—	—	—	1	2	1	—	—	1	6	—	—	2	10	8
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	6	6	2	1	1	-2	-2	-3	-3	-3	-4	-7	-8	-7	-7	-7	-8
min °C	6	3	2	1	-2	-2	-3	-4	-4	-4	-7	-8	-8	-8	-7	-8	-9
chill °C	2	0	0	-4	-8	-9	-12	-14	-12	-15	-19	-20	-21	-21	-17	-18	-20

Freezing level m	3900	3800	3500	3300	3150	2750	2600	2450	2400	2650	2100	1900	1900	1650	1900	1900	1650
Cloud base (m)		9250	6700	5900	5500	2600	1800	1800	1950	1850	1900	1800	1800	1800	2300	1800	1800

	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—
	4:37	—	—	4:37	—	—	4:38	—	—	4:39	—	—	4:40	—	—	4:42	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A dusting of new snow. Freeze-thaw conditions (max 6°C on Tue afternoon, min -4°C on Thu night). Winds increasing (light winds from the SW on Wed morning, gales from the WSW by Thu night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -3°C on Fri afternoon, min -9°C on Sun night). Winds decreasing (stormy winds from the SSW on Fri night, moderate winds from the SSW by Mon morning).

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 2 hours ago	-4° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 57 minutes ago	-4° C	-	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 54 minutes ago	-1° C	-	Calm (0 kph at 74).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	-2° C	Clear	Light winds from the SSW (9 kph at 210).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 35 minutes ago	-2° C	-	Calm (3 kph at 197).
Bend 37 km SSE 1297m alt. 30 minutes ago	-4° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	-2° C	-	Calm (0 kph at 327).
Bend wx 39 km E 1118m alt. 2 hours ago	-3° C	-	Calm (0 kph at 90).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	-4° C	-	Calm (0 kph at 130).

* 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.