– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Thu 18 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Thu 18 Dec 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 -4°C on Thu night, min -14°C on Fri morning). Winds decreasing (extremely windy from the WSW on Thu night, near gales from the WSW by Sat morning).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -7°C on Tue night, min -12°C on Sun night). Winds decreasing (stormy winds from the WSW on Sun night, fresh winds from the SSW by Tue afternoon).
		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	heavy snow	heavy snow	snow shwrs	snow shwrs	clear	cloudy	light snow	light snow	light snow	heavy snow	light snow	light snow	light snow	cloudy	cloudy	mod. snow	light snow	some clouds	light snow
km/h	WSW	W	W	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW	WSW	SW	SSW	S	SW	SW	SSW
See all weather maps
cm	61	14	3	4	—	—	3	2	1	13	2	3	3	—	—	6	2	—	1
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-4	-11	-14	-10	-9	-8	-8	-9	-10	-12	-11	-11	-11	-10	-8	-7	-8	-10	-8
min°C	-7	-14	-14	-14	-9	-9	-9	-9	-10	-12	-12	-11	-12	-11	-9	-8	-10	-10	-12
chill°C	-21	-30	-30	-29	-21	-22	-22	-22	-25	-27	-26	-25	-27	-24	-19	-18	-23	-23	-26

Freezing level (m)	2500	1250	950	850	1000	1150	1300	1550	1500	1300	1400	1500	1200	1500	1450	1550	1750	1350	1400
Cloud base (m)	1800	1850	1800	1800	1800	1800	1800	1800	1800	1900	1800	1800	1800	1800	1850	1800	1800	1850	1800

	—	7:37	—	—	7:37	—	—	7:39	—	—	7:39	—	—	7:39	—	—	7:39	—	—
	—	—	4:30	—	—	4:30	—	—	4:30	—	—	4:31	—	—	4:31	—	—	4:32	—

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 -4°C on Thu night, min -14°C on Fri morning). Winds decreasing (extremely windy from the WSW on Thu night, near gales from the WSW by Sat morning).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sun night. Temperatures will be well below freezing (max -7°C on Tue night, min -12°C on Sun night). Winds decreasing (stormy winds from the WSW on Sun night, fresh winds from the SSW 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	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 2 hours ago	7° C	Light rain.	Calm (0 kph at 199).
Sunriver 34 km SE 1242m alt. 34 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	7° C	Dry	Light winds from the SSW (14 kph at 208).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	5° C	Light rain .	Fresh winds from the S (31 kph at 190).	6 km
Black Butte Ranch wx 36 km NW 1429m alt. 50 minutes ago	3° C	Light rain.	Calm (5 kph at 250).
Bend 37 km SSE 1297m alt. 49 minutes ago	6° C	Dry	Calm (2 kph at 279).
Bend 37 km ESE 1158m alt. 1 hour ago	7° C	Light rain.	Calm (2 kph at 212).
Bend wx 39 km E 1118m alt. 36 minutes ago	7° C	Dry	Light winds from the SSW (10 kph at 202).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	8° C	Light rain.	Calm (0 kph at 8).
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	6° C	Light rain.	Calm (0 kph at —).

* 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.