– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Mon 09 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 09 Feb Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Temperatures will be well below freezing (max -7°C on Mon night, min -11°C on Mon morning). Mainly strong winds.									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max -4°C on Thu afternoon, min -19°C on Sat night). Winds increasing (moderate winds from the NNW on Thu afternoon, severe gales from the SW by Sat morning).
	Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13			Saturday 14
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	cloudy	some clouds	some clouds	some clouds	clear	clear	clear	cloudy	clear	some clouds	clear	some clouds	mod. snow	mod. snow	light snow	light snow
km/h	WNW	WNW	S	S	SSE	ESE	E	NE	NW	NW	NW	WNW	W	W	WSW	SSW	SW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	7	10	3	3
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-11	-10	-7	-7	-8	-8	-8	-7	-7	-5	-4	-5	-6	-9	-10	-10	-13	-16
min °C	-11	-11	-9	-8	-8	-8	-8	-8	-7	-6	-5	-6	-8	-10	-11	-12	-16	-19
chill °C	-23	-19	-12	-17	-17	-17	-13	-12	-11	-14	-13	-16	-20	-23	-24	-27	-31	-34

Freezing level m	1250	1500	850	1550	1800	1000	1700	1900	1250	1850	1900	1000	1800	1700	1350	1500	1350	550
Cloud base (m)	1800	1800	1800	5150	1850	1800	1900	1850	1800	1850	1800	1800	6000	2000	1800	1800	1800	1800

	7:13	—	—	7:13	—	—	7:11	—	—	7:09	—	—	7:09	—	—	7:07	—	—
	—	5:28	—	—	5:29	—	—	5:30	—	—	5:31	—	—	5:34	—	—	5:35	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Temperatures will be well below freezing (max -7°C on Mon night, min -11°C on Mon morning). Mainly strong winds.

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max -4°C on Thu afternoon, min -19°C on Sat night). Winds increasing (moderate winds from the NNW on Thu afternoon, severe gales from the SW by Sat 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 1 hour ago	4° C	Dry	Calm (2 kph at 115).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 2 hours ago	6° C	Dry	Light winds from the SW (8 kph at 232).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	2° C	Clear	Light winds from the WSW (13 kph at 250).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago		-	Calm (0 kph at 280).
Bend 37 km SSE 1297m alt. 50 minutes ago	3° C	Dry	Calm (2 kph at 150).
Bend 37 km ESE 1158m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 244).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	3° C	Dry	Calm (0 kph at 114).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	3° C	Dry	Light winds from the SW (6 kph at 232).
Bend 40 km E 1102m alt. 1 hour ago	3° C	Dry	Calm (5 kph at 134).

* 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.