– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Sat 07 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sat 07 Mar Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 4°C on Sat night, min -14°C on Mon night). Winds decreasing (gales from the W on Sun night, moderate winds from the WNW by Tue morning).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Thu afternoon. Freeze-thaw conditions (max 1°C on Wed morning, min -6°C on Tue night). Winds increasing (fresh winds from the WNW on Tue night, stormy winds from the W by Wed night).
		Sunday 8			Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	cloudy	some clouds	clear	some clouds	light snow	some clouds	some clouds	clear	clear	clear	cloudy	light snow	mod. snow	mod. snow	light snow	light snow	heavy snow
km/h	W	W	W	W	W	W	W	WNW	WNW	W	W	W	W	W	W	W	W	W	W
See all weather maps
cm	—	—	—	—	—	—	4	—	—	—	—	—	—	2	7	10	2	5	13
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	2	1	0	-6	-8	-11	-9	-6	-3	1	1	-1	-1	-1	-2	-2	-3	-2
min °C	1	1	0	-5	-7	-9	-14	-11	-7	-6	-1	0	-1	-1	-2	-3	-3	-3	-3
chill °C	-7	-7	-9	-16	-18	-21	-26	-20	-17	-15	-10	-10	-12	-12	-13	-14	-13	-13	-13

Freezing level m	3550	2850	2700	1600	1000	1100	550	950	1300	1050	2350	2750	2250	2250	2200	1400	1550	1800	1900
Cloud base (m)	1750	1800	2000	1800	1800	1850	1800	6550	2400	5200	2450		1800	1800	1800	1800	1800	1800	1800

	—	7:31	—	—	6:28	—	—	6:28	—	—	6:26	—	—	6:24	—	—	6:22	—	—
	—	—	7:04	—	—	6:05	—	—	6:07	—	—	6:07	—	—	6:08	—	—	6:09	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A dusting of new snow. Freeze-thaw conditions (max 4°C on Sat night, min -14°C on Mon night). Winds decreasing (gales from the W on Sun night, moderate winds from the WNW by Tue morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu afternoon. Freeze-thaw conditions (max 1°C on Wed morning, min -6°C on Tue night). Winds increasing (fresh winds from the WNW on Tue night, stormy winds from the W by Wed 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 37 minutes ago	11° C	Dry	Calm (2 kph at 264).
Sunriver 34 km SE 1242m alt. 39 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	10° C	Dry	Light winds from the SSW (13 kph at 203).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	3° C	Clear	Light winds from the SSW (9 kph at 200).	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. 1 hour ago	-1° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 36 minutes ago	9° C	Dry	Calm (0 kph at 182).
Camp Sherman 39 km NNE 920.5m alt. 37 minutes ago	9° C	Dry	Wind obs. (8 kph from 61 degs) was rejected.
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	9° C	Dry	Calm (5 kph at 245).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	6° C	Dry	Light winds from the SW (10 kph at 219).

* 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.