– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 am Sun 21 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 21 Dec 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 Sun night. Temperatures will be below freezing (max -3°C on Sun morning, min -9°C on Sun night). Winds decreasing (gales from the WSW on Sun night, light winds from the WSW by Tue night).									Days 4–6 Weather Summary A light covering of new snow mostly falling on Thu night. Temperatures will be below freezing (max -5°C on Wed afternoon, min -9°C on Thu night). Winds decreasing (severe gales from the SSE on Wed night, calm by Fri night).
	Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	heavy snow	light snow	light snow	cloudy	cloudy	cloudy	heavy snow	some clouds	some clouds	cloudy	light snow	light snow	light snow	light snow	some clouds	clear
km/h	SW	WSW	WSW	SW	WSW	SW	SW	SSW	S	SW	SSW	S	S	SSW	SSW	SW	WSW	E
See all weather maps
cm	4	4	13	2	2	—	—	—	11	—	—	—	1	2	4	2	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-3	-4	-5	-7	-7	-8	-5	-5	-4	-6	-5	-5	-5	-7	-8	-9	-8	-7
min °C	-3	-4	-9	-8	-8	-8	-6	-5	-7	-6	-6	-5	-6	-7	-9	-9	-8	-8
chill °C	-9	-13	-21	-19	-19	-19	-14	-13	-12	-13	-14	-15	-17	-15	-18	-20	-16	-11

Freezing level m	1850	1800	1400	1350	1400	850	1450	1450	1400	1300	1550	1350	1750	1500	950	1350	1200	600
Cloud base (m)	1800	1800	1800	1800	1800	1800	1950	1800	1800	1850	1850	1850	1850	1850	2500	1850	1800	1850

	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:41	—	—
	—	4:30	—	—	4:31	—	—	4:31	—	—	4:32	—	—	4:32	—	—	4:34	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Sun night. Temperatures will be below freezing (max -3°C on Sun morning, min -9°C on Sun night). Winds decreasing (gales from the WSW on Sun night, light winds from the WSW by Tue night).

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Thu night. Temperatures will be below freezing (max -5°C on Wed afternoon, min -9°C on Thu night). Winds decreasing (severe gales from the SSE on Wed night, calm by Fri 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 1 hour ago	0° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 2 hours ago	0° C	-	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 54 minutes ago		Dry
Bend 34 km E 1164.6m alt. 2 hours ago	3° C	Dry	Light winds from the SSW (10 kph at 194).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	0° C	Dry and cloudy.	Light winds from the SW (7 kph at 230).	0.0 km High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	1° C	-	Calm (0 kph at 267).
Bend 37 km SSE 1297m alt. 1 hour ago	0° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 54 minutes ago	2° C	-	Calm (0 kph at 143).
Bend wx 39 km E 1118m alt. 1 hour ago	2° C	-	Calm (2 kph at 178).
Camp Sherman 39 km NNE 920.5m alt. 51 minutes ago	0° C	-

* 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.