– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Mon 11 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 11 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 14°C on Tue afternoon, min -4°C on Wed morning). Winds increasing (light winds from the SSE on Tue afternoon, gales from the WNW by Wed night).									Days 4–6 Weather Summary Mostly dry. Freeze-thaw conditions (max 3°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (near gales from the WSW on Fri afternoon, light winds from the WNW by Sat afternoon).
	Monday 11			Tuesday 12			Wednesday 13			Thursday 14			Friday 15			Saturday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	rain shwrs	clear	some clouds	rain shwrs	light snow	light snow	some clouds	clear	clear	clear	some clouds	some clouds	some clouds	cloudy	cloudy	some clouds
km/h	SW	WSW	SSW	S	SSE	S	W	W	WNW	WNW	W	W	WSW	WSW	WNW	WNW	WSW	NNW
See all weather maps
cm	—	—	—	—	—	—	2	1	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.1	—	—	2	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	12	10	12	14	9	-1	-2	-1	1	3	1	0	0	-2	-1	-1	-3
min °C	7	11	9	10	12	3	-4	-3	-3	0	3	0	0	-2	-4	-2	-2	-4
chill °C	4	9	6	8	11	-1	-14	-12	-13	-8	-2	-7	-7	-11	-11	-8	-6	-9

Freezing level m	3800	4050	4100	4000	4050	3450	1800	2100	1250	2700	2900	2800	2500	2200	1350	2350	2300	1350
Cloud base (m)	9500	9200	8500	9100		1800	1850	1800	1800			2300	2300	2200	1800	5600	3400	1900

	5:45	—	—	5:43	—	—	5:43	—	—	5:41	—	—	5:41	—	—	5:39	—	—
	—	—	8:21	—	—	8:22	—	—	8:23	—	—	8:24	—	—	8:25	—	—	8:27

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 14°C on Tue afternoon, min -4°C on Wed morning). Winds increasing (light winds from the SSE on Tue afternoon, gales from the WNW by Wed night).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 3°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (near gales from the WSW on Fri afternoon, light winds from the WNW by Sat afternoon).

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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 26).
Bend 34 km E 1147m alt. 1 hour ago	10° C	Dry	Calm (2 kph at 89).
Bend 34 km E 1164.6m alt. 2 hours ago	10° C	Dry	Calm (0 kph at 34).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	10° C	Clear	Light winds from the NE (13 kph at 40).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	9° C	Dry	Light winds from the ESE (6 kph at 113).
Bend 37 km SSE 1297m alt. 57 minutes ago	12° C	Dry	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 350).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 346).
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	11° C	Dry	Calm (2 kph at 138).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	12° C	Dry	Moderate winds from the ENE (21 kph at 65).

* 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.