– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 9 pm Sun 28 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sun 28 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 5°C on Mon night, min 0°C on Sun night). Wind will be generally light.										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max 0°C on Wed night, min -13°C on Sat afternoon). Winds increasing (light winds from the S on Wed night, stormy winds from the S by Fri afternoon).
		Monday 29			Tuesday 30			Wednesday 31			Thursday 1			Friday 2			Saturday 3
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	some clouds	clear	clear	clear	clear	some clouds	some clouds	cloudy	light snow	light snow	snow shwrs	cloudy	cloudy	mod. snow	mod. snow	snow shwrs	light snow
km/h	W	NNW	NW	W	SW	WSW	SW	S	SW	S	SW	SW	SW	SSW	S	SW	SW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	1	3	1	—	—	6	9	1	3
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	1	3	3	5	5	5	4	4	2	0	-3	-4	-5	-5	-5	-7	-10	-13	-13
min °C	0	3	3	3	5	4	3	3	1	-3	-3	-5	-6	-6	-5	-11	-12	-13	-14
chill °C	-5	-2	-1	0	4	1	-1	-1	1	-8	-11	-16	-16	-18	-17	-24	-25	-27	-28

Freezing level m	1000	3550	3650	3700	3850	3850	3700	3650	3450	2950	2400	2250	2150	2250	2300	1800	1650	1250	950
Cloud base (m)	1800	5650	1800	5850					6600	3950	1950	1800	1850	1850	1800	1800	1800	1800	1800

	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—	7:41	—	—
	—	—	4:36	—	—	4:37	—	—	4:37	—	—	4:38	—	—	4:39	—	—	4:40	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 5°C on Mon night, min 0°C on Sun night). Wind will be generally light.

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max 0°C on Wed night, min -13°C on Sat afternoon). Winds increasing (light winds from the S on Wed night, stormy winds from the S by Fri 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. 34 minutes ago	-3° C	-	Calm (0 kph at 0).
Sisters wx 25 km NNE 1022m alt. 35 minutes ago	-2° C	-	Calm (0 kph at —).
Sunriver 34 km SE 1242m alt. 41 minutes ago		Dry
Bend 34 km E 1164.6m alt. 1 hour ago	-1° C	-	Calm (0 kph at 19).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	-1° C	Dry and partly cloudy.	Light winds from the SSW (9 kph at 200).	16 km Low: broken
Black Butte Ranch wx 36 km NW 1429m alt. 54 minutes ago	-3° C	-	Light winds from the SSW (8 kph at 197).
Bend 37 km SSE 1297m alt. 42 minutes ago	-3° C	-	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	-1° C	-	Calm (0 kph at 255).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	-2° C	-	Calm (0 kph at 127).
Deschutes River Woods wx 40 km ESE 1185m alt. 54 minutes ago	-1° C	-	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.