– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Fri 21 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Fri 21 Feb Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -1°C on Sat afternoon, min -13°C on Mon afternoon). Winds increasing (near gales from the W on Sun night, extremely windy from the WSW by Mon afternoon).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 2°C on Wed afternoon, min -13°C on Mon night). Winds decreasing (extremely windy from the WSW on Mon night, light winds from the SSW by Tue night).
		Saturday 22			Sunday 23			Monday 24			Tuesday 25			Wednesday 26			Thursday 27
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	snow shwrs	heavy snow	heavy snow	heavy snow	light snow	snow shwrs	light snow	heavy snow	snow shwrs	clear	clear	some clouds	clear	clear	some clouds	some clouds	clear
km/h	WSW	WSW	WSW	WSW	WSW	WSW	W	SW	WSW	WSW	WNW	WNW	WSW	S	SSW	SSW	SSW	SW	WSW
See all weather maps
cm	—	—	2.0	16	12	28	4	4	5	33	1.0	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-5	-3	-1	-1	-3	-4	-5	-7	-12	-12	-8	-5	0	1	2	2	1	0	1
min°C	-8	-3	-3	-2	-3	-6	-7	-8	-13	-13	-9	-7	-4	1	1	2	1	0	0
chill°C	-20	-13	-14	-13	-15	-19	-18	-23	-31	-30	-23	-17	-9	-4	-5	-4	-6	-7	-7

Freezing level (m)	2100	2550	2600	2750	2650	2500	1950	2150	1550	1300	1300	1650	1250	3250	3400	3500	3350	3100	3250
Cloud base (m)	2350	2350	1900	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800		1800	9850		1800

	—	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:47	—	—
	—	—	5:45	—	—	5:46	—	—	5:49	—	—	5:50	—	—	5:51	—	—	5:52	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -1°C on Sat afternoon, min -13°C on Mon afternoon). Winds increasing (near gales from the W on Sun night, extremely windy from the WSW by Mon afternoon).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 2°C on Wed afternoon, min -13°C on Mon night). Winds decreasing (extremely windy from the WSW on Mon night, light winds from the SSW by Tue 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 38 minutes ago	6° C	Dry	Calm (0 kph at 137).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 86).
Sisters 32 km NE 964m alt. 1 hour ago		Dry
Sunriver 34 km SE 1242m alt. 59 minutes ago		Dry
Bend 34 km E 1164.6m alt. 34 minutes ago	6° C	Dry	Light winds from the S (10 kph at 184).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	4° C	Dry and cloudy.	Light winds from the SSW (15 kph at 210).	16 km Low: broken Mid: broken High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago		-	Calm (0 kph at 308).
Bend wx 36 km E 1118m alt. 2 hours ago		-	Calm (2 kph at 76).
Bend 37 km SSE 1297m alt. 2 hours ago	1° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 149).

* 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.