– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Sun 23 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Sun 23 Nov Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max 0°C on Sun morning, min -7°C on Sun night). Winds decreasing (gales from the WSW on Sun night, moderate winds from the WNW by Mon night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Wed morning, min -7°C on Fri morning). Winds decreasing (severe gales from the WNW on Thu night, moderate winds from the NNW by Fri night).
	Sunday 23			Monday 24			Tuesday 25			Wednesday 26			Thursday 27			Friday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	light snow	light snow	some clouds	some clouds	some clouds	cloudy	light snow	light snow	light snow	snow shwrs	some clouds	some clouds	light snow	heavy snow	mod. snow	light snow	cloudy
km/h	W	W	WSW	WNW	WNW	WNW	W	W	W	W	W	WSW	WSW	SW	W	WNW	NW	NNW
See all weather maps
cm	—	2	5	—	—	—	—	3	1	2	1	—	—	3	30	9	3	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	0	-2	-4	-7	-6	-2	-1	-1	0	1	1	1	-1	-1	-4	-7	-7	-5
min°C	0	-2	-7	-7	-6	-5	-1	-1	0	1	1	-1	-1	-2	-6	-7	-7	-6
chill°C	-6	-9	-19	-17	-14	-12	-8	-9	-8	-5	-6	-9	-9	-12	-18	-18	-17	-14

Freezing level (m)	2550	2200	1650	1300	1350	1100	2300	2150	2400	2650	2600	2600	2300	2250	1600	1400	1300	950
Cloud base (m)	2700	2150	1800	1800	1900	6150	3200	2150	1800	1800	1800	8950	2800	2350	1800	1850	1800	1800

	7:11	—	—	7:13	—	—	7:15	—	—	7:16	—	—	7:16	—	—	7:18	—	—
	—	4:32	—	—	4:32	—	—	4:31	—	—	4:31	—	—	4:30	—	—	4:30	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max 0°C on Sun morning, min -7°C on Sun night). Winds decreasing (gales from the WSW on Sun night, moderate winds from the WNW by Mon night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Wed morning, min -7°C on Fri morning). Winds decreasing (severe gales from the WNW on Thu night, moderate winds from the NNW 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. 56 minutes ago	10° C	Dry	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 0).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry
Bend 34 km E 1164.6m alt. 2 hours ago	12° C	Dry	Calm (2 kph at 228).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 3 hours ago	9° C	Dry and cloudy.	Moderate winds from the S (20 kph at 190).	16 km Low: broken Mid: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 53 minutes ago	4° C	Dry	Calm (3 kph at 266).
Bend 37 km SSE 1297m alt. 56 minutes ago	10° C	Dry	Calm (0 kph at 301).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 190).
Bend wx 39 km E 1118m alt. 2 hours ago	12° C	Dry	Light winds from the SW (6 kph at 218).
Camp Sherman 39 km NNE 920.5m alt. 49 minutes ago	9° C	Dry	Calm (3 kph at 9).

* 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.