– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Thu 11 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Thu 11 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Mild temperatures (max 9°C on Sat morning, min 4°C on Sat night). Mainly strong winds.										Days 5–7 Weather Summary Light rain (total 4mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Tue morning. Freeze-thaw conditions (max 4°C on Sun night, min -9°C on Tue night). Winds increasing (strong winds from the WSW on Sun night, stormy winds from the SW by Wed afternoon).
		Friday 12			Saturday 13			Sunday 14			Monday 15			Tuesday 16			Wednesday 17
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	cloudy	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	light rain	light rain	light snow	heavy snow	heavy snow	heavy snow	light snow	light snow	heavy snow
km/h	WNW	WNW	WNW	W	WSW	SW	WSW	WSW	WSW	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	4	17	18	24	2	2	44
mm	—	—	—	—	—	—	—	—	—	—	1.5	2	—	—	—	—	—	—	—
max°C	5	7	7	7	9	8	6	5	4	4	3	3	2	-1	-3	-5	-8	-7	-7
min°C	5	7	7	7	8	7	4	5	4	2	3	3	0	-2	-3	-9	-8	-8	-9
chill°C	0	2	2	2	5	3	-2	0	-2	-6	-5	-5	-9	-11	-14	-23	-20	-20	-21

Freezing level (m)	3650	3750	3750	3850	3750	3750	3600	3400	3250	3100	3150	3100	2650	2400	1900	1200	1200	1300	1200
Cloud base (m)		7200						7250	6250	4400	2300	1850	1800	1800	1800	1800	1800	1800	1800

	—	7:31	—	—	7:33	—	—	7:33	—	—	7:35	—	—	7:35	—	—	7:35	—	—
	—	—	4:28	—	—	4:28	—	—	4:29	—	—	4:29	—	—	4:29	—	—	4:29	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Mild temperatures (max 9°C on Sat morning, min 4°C on Sat night). Mainly strong winds.

South Sister Volcano Weather (Days 3-6):

Light rain (total 4mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Tue morning. Freeze-thaw conditions (max 4°C on Sun night, min -9°C on Tue night). Winds increasing (strong winds from the WSW on Sun night, stormy winds from the SW by Wed afternoon).

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. 3 hours ago	-1° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 39 minutes ago	-1° C	-	Calm (0 kph at 74).
Sunriver 34 km SE 1242m alt. 30 minutes ago		Dry
Bend 34 km E 1164.6m alt. 59 minutes ago	7° C	Dry	Light winds from the SSE (11 kph at 158).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	-2° C	Clear	Light winds from the S (11 kph at 190).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 41 minutes ago	2° C	-	Calm (0 kph at 325).
Bend 37 km SSE 1297m alt. 1 hour ago	-4° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 39 minutes ago	5° C	Dry	Calm (0 kph at 183).
Bend wx 39 km E 1118m alt. 1 hour ago	1° C	-	Calm (0 kph at 180).
Camp Sherman 39 km NNE 920.5m alt. 44 minutes ago	-2° C	-	Calm (0 kph at 207).

* 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.