– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 pm Thu 04 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Thu 04 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A moderate fall of snow, heaviest on Fri morning. Freeze-thaw conditions (max 2°C on Fri morning, min -4°C on Fri night). Winds decreasing (severe gales from the W on Fri afternoon, fresh winds from the W by Sat afternoon).											Days 5–7 Weather Summary A heavy fall of snow, heaviest during Mon night. Becoming milder with moderate rain (total 12mm) on Tue night. Freeze-thaw conditions (max 3°C on Tue night, min -4°C on Mon night). Winds increasing (fresh winds from the W on Sun night, extremely windy from the W by Wed morning).
	Thu 4		Friday 5			Saturday 6			Sunday 7			Monday 8			Tuesday 9
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	mod. snow	light snow	some clouds	some clouds	light snow	light snow	light snow	light snow	mod. snow	light snow	mod. snow	heavy snow	some clouds	some clouds	mod. snow
km/h	NW	NW	W	W	WNW	WNW	W	W	W	W	W	W	W	W	W	W	W
See all weather maps
cm	1	2	8	2	—	—	1	2	2	4	6	4	9	31	—	—	6
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	12
max°C	0	1	2	0	-2	-4	-4	-3	-2	-1	0	1	1	1	-3	-4	3
min°C	-1	0	1	-1	-4	-4	-4	-3	-2	-2	-1	1	1	-4	-4	-4	-3
chill°C	-10	-8	-7	-11	-15	-14	-13	-11	-10	-10	-8	-8	-9	-16	-15	-14	-13

Freezing level (m)	2250	2500	2700	2550	1800	1700	1750	1750	2050	2200	2250	2650	2800	2500	1500	1400	1450
Cloud base (m)	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800

	—	—	7:26	—	—	7:26	—	—	7:28	—	—	7:28	—	—	7:30	—	—
	4:29	—	—	4:28	—	—	4:28	—	—	4:28	—	—	4:28	—	—	4:28	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Fri morning. Freeze-thaw conditions (max 2°C on Fri morning, min -4°C on Fri night). Winds decreasing (severe gales from the W on Fri afternoon, fresh winds from the W by Sat afternoon).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Mon night. Becoming milder with moderate rain (total 12mm) on Tue night. Freeze-thaw conditions (max 3°C on Tue night, min -4°C on Mon night). Winds increasing (fresh winds from the W on Sun night, extremely windy from the W by Wed morning).

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. 45 minutes ago	8° C	Dry	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	8° C	Dry	Calm (2 kph at 292).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	8° C	Dry	Wind obs. (6 kph from 174 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	7° C	Dry and cloudy.	Light winds from the S (19 kph at 190).	16 km Low: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	2° C	-	Calm (5 kph at 281).
Bend 37 km SSE 1297m alt. 45 minutes ago	4° C	Dry	Calm (0 kph at 241).
Bend 37 km ESE 1158m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 227).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 8).
Deschutes River Woods wx 40 km ESE 1185m alt. 57 minutes ago	8° C	Dry	Calm (3 kph at 229).

* 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.