– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Sun 10 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sun 10 May Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 14°C on Tue afternoon, min 5°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun afternoon, light winds from the S by Tue afternoon).									Days 4–6 Weather Summary Mild with light rain (total 5mm) on Wed night Becoming colder with a light covering of snow, mostly falling on Thu morning. Freeze-thaw conditions (max 10°C on Wed morning, min -3°C on Thu night). Winds increasing (calm on Wed night, near gales from the W by Thu night).
	Sunday 10			Monday 11			Tuesday 12			Wednesday 13			Thursday 14			Friday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	clear	clear	clear	clear	rain shwrs	some clouds	some clouds	cloudy	light rain	snow shwrs	light snow	cloudy	some clouds	some clouds	clear	some clouds
km/h	SW	WSW	WSW	SW	SW	SW	S	S	S	S	SW	S	NW	W	W	WNW	W	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	2	3	—	—	—	—	—
mm	—	—	—	—	—	—	0.1	—	—	—	2	3	—	—	—	—	—	—
max °C	8	8	6	9	12	10	12	14	12	10	6	5	-1	-1	-2	1	3	2
min °C	8	8	5	7	11	9	10	14	10	10	5	0	-1	-2	-3	-1	2	2
chill °C	4	4	1	4	10	7	7	12	7	6	3	-4	-7	-11	-12	-8	-2	-1

Freezing level m	3700	3650	3850	3800	4050	4100	4100	4200	4150	3700	3250	2950	2150	2100	1750	2650	2950	3100
Cloud base (m)	6050	6350		9500		8550	9150	5250	6200	3400	2050	1850	1800	1800	1800		7150	5850

	5:46	—	—	5:45	—	—	5:43	—	—	5:43	—	—	5:41	—	—	5:41	—	—
	—	—	8:20	—	—	8:21	—	—	8:22	—	—	8:23	—	—	8:24	—	—	8:25

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Very mild (max 14°C on Tue afternoon, min 5°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun afternoon, light winds from the S by Tue afternoon).

South Sister Volcano Weather (Days 3-6):

Mild with light rain (total 5mm) on Wed night Becoming colder with a light covering of snow, mostly falling on Thu morning. Freeze-thaw conditions (max 10°C on Wed morning, min -3°C on Thu night). Winds increasing (calm on Wed night, near gales from the W by Thu 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 44 minutes ago	12° C	Dry	Calm (2 kph at 217).
Bend 34 km E 1164.6m alt. 25 minutes ago	14° C	Dry	Calm (0 kph at 244).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	5° C	Clear	Calm (0 kph at 0).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 33 minutes ago	11° C	Dry	Calm (2 kph at 316).
Bend 37 km SSE 1297m alt. 58 minutes ago	4° C	Dry	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 176).
Camp Sherman 39 km NNE 920.5m alt. 44 minutes ago	8° C	Dry	Calm (0 kph at 211).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	10° C	Dry	Calm (0 kph at 270).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	10° C	Dry	Calm (2 kph at 342).

* 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.