– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Tue 16 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Tue 16 Dec 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 Tue night. Freeze-thaw conditions (max 2°C on Thu morning, min -10°C on Tue night). Winds increasing (fresh winds from the WSW on Wed night, extremely windy from the WSW by Thu afternoon).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -2°C on Sun afternoon, min -10°C on Fri afternoon). Winds increasing (strong winds from the WSW on Sat morning, severe gales from the SW by Sun night).
	Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	light snow	heavy snow	snow shwrs	some clouds	snow shwrs	heavy snow	light snow	heavy snow	light snow	light snow	snow shwrs	some clouds	some clouds	snow shwrs	light snow	mod. snow	heavy snow
km/h	WSW	WSW	WSW	W	W	WSW	WSW	WSW	WSW	WSW	W	W	WSW	WSW	W	SW	WSW	SW
See all weather maps
cm	—	2	38	4	—	6	12	3	46	4	4	3	—	—	1	1	6	13
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	1	1	1	-7	-5	1	2	1	-1	-7	-10	-7	-5	-6	-4	-3	-2	-4
min°C	1	1	-10	-10	-5	-5	2	0	-6	-9	-10	-10	-6	-6	-6	-3	-3	-7
chill°C	-7	-7	-23	-22	-15	-14	-7	-11	-18	-22	-22	-22	-15	-15	-16	-12	-12	-18

Freezing level (m)	2650	2700	2700	1000	1000	1300	2900	2750	2250	1250	1100	800	900	1100	1100	1900	2150	1750
Cloud base (m)	5800	1800	1800	1850	1800	2800	1800	1800	1800	1850	1800	1800	1800	1800	1800	1800	1800	1800

	7:35	—	—	7:35	—	—	7:37	—	—	7:37	—	—	7:37	—	—	7:39	—	—
	—	4:29	—	—	4:29	—	—	4:30	—	—	4:30	—	—	4:30	—	—	4:30	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 2°C on Thu morning, min -10°C on Tue night). Winds increasing (fresh winds from the WSW on Wed night, extremely windy from the WSW by Thu afternoon).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -2°C on Sun afternoon, min -10°C on Fri afternoon). Winds increasing (strong winds from the WSW on Sat morning, severe gales from the SW by Sun 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	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 2 hours ago	11° C	Dry	Calm (2 kph at 248).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	12° C	Dry	Calm (3 kph at 282).
Sunriver 34 km SE 1242m alt. 2 hours ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	12° C	Dry	Light winds from the S (8 kph at 174).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	10° C	Clear	Light winds from the SSW (17 kph at 210).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 35 minutes ago	6° C	Dry	Calm (2 kph at 201).
Bend 37 km SSE 1297m alt. 53 minutes ago	7° C	Dry	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 156).
Bend wx 39 km E 1118m alt. 2 hours ago	12° C	Dry	Light winds from the SSW (13 kph at 204).
Camp Sherman 39 km NNE 920.5m alt. 39 minutes ago	11° C	Dry	Calm (0 kph at 158).

* 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.