– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 am Mon 15 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 15 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. Temperatures will be below freezing (max 0°C on Mon morning, min -14°C on Wed morning). Winds decreasing (extremely windy from the WSW on Tue night, near gales from the W by Wed night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Thu morning, min -10°C on Fri afternoon). Winds decreasing (extremely windy from the WSW on Thu afternoon, near gales from the WSW by Sat afternoon).
	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	cloudy	some clouds	light snow	heavy snow	mod. snow	snow shwrs	mod. snow	heavy snow	heavy snow	heavy snow	heavy snow	snow shwrs	clear	some clouds	some clouds	clear
km/h	WSW	WSW	WSW	WSW	WSW	WSW	W	W	WSW	WSW	WSW	W	W	W	W	W	WSW	WSW
See all weather maps
cm	1	5	—	—	2	39	9	1	8	21	31	74	20	12	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	0	-1	-4	-3	-3	-3	-12	-7	-4	-2	-3	-4	-7	-9	-8	-8	-9	-9
min°C	-1	-4	-5	-3	-3	-13	-14	-8	-8	-2	-3	-6	-8	-10	-9	-8	-9	-10
chill°C	-12	-16	-17	-14	-14	-29	-29	-21	-20	-14	-16	-19	-22	-25	-21	-20	-21	-23

Freezing level (m)	3200	2950	2450	2600	2600	2600	1100	1050	1100	2550	2650	2300	1450	1200	400	1000	1150	1100
Cloud base (m)	2050	1800	1850	2000	1950	1800	1850	1800	2400	1800	1800	1800	1850	1800	1800	1800	1850	1800

	7:35	—	—	7:35	—	—	7:35	—	—	7:37	—	—	7:37	—	—	7:37	—	—
	—	4:29	—	—	4:29	—	—	4:29	—	—	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. Temperatures will be below freezing (max 0°C on Mon morning, min -14°C on Wed morning). Winds decreasing (extremely windy from the WSW on Tue night, near gales from the W by Wed night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Thu morning, min -10°C on Fri afternoon). Winds decreasing (extremely windy from the WSW on Thu afternoon, near gales from the WSW by Sat 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. 48 minutes ago	13° C	Dry	Calm (3 kph at 287).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	13° C	Dry	Calm (5 kph at 258).
Sunriver 34 km SE 1242m alt. 43 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	15° C	Dry	Wind obs. (6 kph from 167 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	11° C	Dry and cloudy.	Light winds from the SSW (15 kph at 200).	16 km Low: few Mid: scattered High: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	9° C	Dry	Light winds from the W (6 kph at 270).
Bend 37 km SSE 1297m alt. 50 minutes ago	9° C	Dry	Calm (2 kph at 140).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (3 kph at 140).
Bend wx 39 km E 1118m alt. 2 hours ago	13° C	Dry	Light winds from the SSW (14 kph at 206).
Camp Sherman 39 km NNE 920.5m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 310).

* 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.