– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Wed 24 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 24 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -3°C on Wed night, min -10°C on Thu night). Winds decreasing (severe gales from the W on Thu afternoon, moderate winds from the NW by Sat morning).											Days 5–7 Weather Summary Mostly dry. Temperatures will be below freezing (max -5°C on Sat afternoon, min -9°C on Mon morning). Winds increasing (fresh winds from the W on Sat afternoon, gales from the W by Mon afternoon).
	Wed 24		Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	light snow	mod. snow	heavy snow	light snow	light snow	light snow	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	clear	clear	clear
km/h	W	WNW	WSW	W	W	W	WNW	NW	WNW	W	WNW	W	WSW	W	W	W	WSW
Wave Height Map See all maps
cm	—	—	1.0	6	18	5	4	4	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-5	-3	-5	-7	-8	-10	-9	-8	-6	-5	-5	-6	-7	-7	-8	-8	-8
min°C	-5	-5	-6	-7	-10	-10	-10	-9	-7	-6	-7	-7	-7	-8	-9	-9	-8
chill°C	-13	-14	-16	-19	-23	-22	-22	-20	-15	-14	-17	-17	-17	-20	-19	-20	-20

Freezing level (m)	2450	2200	2150	1950	1650	1650	1600	1400	1800	2150	1800	1950	2100	1200	1650	1800	1250
Cloud base (m)	3150	1800	1800	1800	1800	1800	1800	1800	1800	1850	1800	1800	1900	1800	1800	1800	1800

	—	—	6:05	—	—	6:03	—	—	6:03	—	—	6:01	—	—	6:00	—	—
	—	8:01	—	—	8:04	—	—	8:05	—	—	8:06	—	—	8:07	—	—	8:07

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -3°C on Wed night, min -10°C on Thu night). Winds decreasing (severe gales from the W on Thu afternoon, moderate winds from the NW by Sat morning).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Temperatures will be below freezing (max -5°C on Sat afternoon, min -9°C on Mon morning). Winds increasing (fresh winds from the W on Sat afternoon, gales from the W by Mon afternoon).

This table gives the weather forecast for South Sister Volcano at the specific elevation of 3157 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. 22 minutes ago	2° C	-	Calm (0 kph at 152).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	9° C	Dry	Calm (3 kph at 334).
Sisters wx 25 km NNE 969m alt. 2 hours ago	9° C	Dry	Calm (2 kph at 307).
Sisters 32 km NE 964m alt. 2 hours ago	8° C	Dry	Light winds from the WNW (8 kph at 292).
Sunriver 34 km SE 1242m alt. 1 hour ago		Dry

* 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.