– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Fri 26 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Fri 26 Apr 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 night. Temperatures will be below freezing (max -3°C on Sat morning, min -10°C on Sun night). Winds increasing (light winds from the WNW on Fri night, near gales from the W by Sun night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Mon morning. Temperatures will be below freezing (max 0°C on Wed afternoon, min -11°C on Mon morning). Winds decreasing (near gales from the W on Mon morning, calm by Wed night).
	Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 1
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	light snow	cloudy	cloudy	light snow	cloudy	snow shwrs	mod. snow	mod. snow	light snow	snow shwrs	light snow	light snow	snow shwrs	clear	clear	clear
km/h	WSW	W	WNW	WSW	W	W	WSW	WSW	W	WNW	W	W	W	WNW	NNW	ENE	ENE	ENE
Wave Height Map See all maps
cm	4	2.0	3	—	—	1.0	—	1.0	6	9	2.0	1.0	4	5	2.0	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-5	-5	-4	-3	-3	-3	-3	-4	-7	-10	-8	-8	-9	-8	-8	-3	0	0
min°C	-5	-5	-6	-3	-4	-5	-4	-6	-10	-11	-9	-10	-10	-9	-9	-5	-1	-1
chill°C	-14	-14	-16	-10	-13	-14	-12	-15	-22	-22	-19	-21	-22	-19	-19	-12	-5	-1

Freezing level (m)	1700	1700	1450	1900	1800	1600	1800	1700	1100	1150	1400	700	1350	1350	1000	2100	2550	2350
Cloud base (m)	1800	1800	1800	2000	1850	1800	1800	1850	1800	1850	1800	1800	1800	1800	1800	1800	1950	1800

	6:03	—	—	6:03	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:56	—	—
	—	—	8:05	—	—	8:06	—	—	8:07	—	—	8:07	—	—	8:09	—	—	8:10

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow, heaviest on Sun night. Temperatures will be below freezing (max -3°C on Sat morning, min -10°C on Sun night). Winds increasing (light winds from the WNW on Fri night, near gales from the W by Sun night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Mon morning. Temperatures will be below freezing (max 0°C on Wed afternoon, min -11°C on Mon morning). Winds decreasing (near gales from the W on Mon morning, calm 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind
Sunriver wx 23 km SE 1684m alt. 40 minutes ago	4° C	-	Calm (0 kph at 152).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	12° C	Dry	Calm (3 kph at 194).
Sisters wx 25 km NNE 969m alt. 3 hours ago	9° C	Dry	Calm (2 kph at 287).
Sisters 32 km NE 964m alt. 3 hours ago	8° C	Dry	Calm (5 kph at 271).
Bend 34 km E 1147m alt. 2 hours ago	8° C	Dry	Calm (5 kph at 342).

* 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.