– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Thu 25 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Thu 25 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -5°C on Sat night, min -10°C on Thu night). Winds decreasing (severe gales from the W on Thu afternoon, fresh winds from the WNW by Sat morning).									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Mon morning. Temperatures will be below freezing (max -4°C on Tue night, min -14°C on Sun night). Winds decreasing (severe gales from the W on Sun night, fresh winds from the W by Tue afternoon).
	Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	mod. snow	heavy snow	light snow	light snow	light snow	light snow	light snow	snow shwrs	cloudy	cloudy	snow shwrs	snow shwrs	snow shwrs	some clouds	clear	some clouds	clear
km/h	WSW	W	WSW	W	W	WNW	W	WNW	WNW	W	WSW	W	WNW	W	W	W	W	W
Wave Height Map See all maps
cm	2.0	6	15	2.0	2.0	5	1.0	1.0	1.0	—	—	5	4	1.0	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-6	-7	-8	-10	-9	-9	-6	-6	-5	-5	-7	-10	-11	-9	-6	-9	-7	-4
min°C	-6	-7	-10	-10	-10	-9	-7	-7	-7	-6	-9	-14	-13	-11	-8	-9	-8	-6
chill°C	-16	-20	-22	-22	-21	-20	-16	-18	-18	-16	-20	-29	-27	-23	-20	-21	-18	-16

Freezing level (m)	2100	1950	1650	1700	1700	1550	1800	1950	1850	1950	1900	1050	1300	1500	900	1750	2050	1250
Cloud base (m)	1800	1800	1800	1800	1800	1800	1800	1950	1800	1800	1900	1800	1800	1800	1800	2450	1850	1800

	6:05	—	—	6:03	—	—	6:03	—	—	6:01	—	—	6:00	—	—	5:58	—	—
	—	—	8:04	—	—	8:05	—	—	8:06	—	—	8:07	—	—	8:07	—	—	8:09

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 -5°C on Sat night, min -10°C on Thu night). Winds decreasing (severe gales from the W on Thu afternoon, fresh winds from the WNW by Sat morning).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Mon morning. Temperatures will be below freezing (max -4°C on Tue night, min -14°C on Sun night). Winds decreasing (severe gales from the W on Sun night, fresh winds from the W by Tue 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. 31 minutes ago	4° C	-	Calm (0 kph at 152).
Sisters wx 25 km NNE 1022m alt. 30 minutes ago	13° C	Dry	Calm (5 kph at 254).
Sisters 32 km NE 964m alt. 57 minutes ago	12° C	Dry	Light winds from the NW (6 kph at 318).
Sunriver 34 km SE 1242m alt. 51 minutes ago		Dry
Bend 34 km E 1164.6m alt. 34 minutes ago	11° C	Dry	Wind obs. (13 kph from 179 degs) was rejected.

* 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.