– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 3 am Sun 07 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 07 Dec Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow heaviest on Sun morning. Turning milder with heavy rain (total 53mm), heaviest during Tue night. Freeze-thaw conditions (max 4°C on Tue night, min -3°C on Sun night). Winds increasing (near gales from the W on Sun night, stormy winds from the W by Tue night).									Days 4–6 Weather Summary Light rain (total 5mm), mostly falling on Wed morning. Mild temperatures (max 7°C on Fri morning, min 1°C on Wed night). Winds decreasing (extremely windy from the W on Wed morning, light winds from the WNW by Fri night).
	Sunday 7			Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	light snow	cloudy	light snow	light snow	heavy rain	heavy rain	heavy rain	light rain	light rain	light rain	rain shwrs	clear	clear	clear	clear	clear
km/h	W	W	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	W	WNW	WNW	W
See all weather maps
cm	2	3	1	—	4	2	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	3	12	13	24	3	1.1	0.4	0.3	—	—	—	—	—
max°C	0	-2	-1	1	1	2	3	3	4	4	4	3	3	4	5	7	7	6
min°C	-1	-2	-3	0	1	2	3	3	3	3	4	1	2	4	5	7	6	6
chill°C	-10	-12	-12	-9	-8	-7	-6	-6	-6	-6	-5	-7	-5	-1	1	4	3	3

Freezing level (m)	2450	2200	2100	2500	2800	3100	3050	3050	3200	3150	3250	2850	3050	3500	3750	3850	3800	3750
Cloud base (m)	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1850	1850		7350

	7:28	—	—	7:28	—	—	7:30	—	—	7:31	—	—	7:31	—	—	7:31	—	—
	—	4:28	—	—	4:28	—	—	4:28	—	—	4:28	—	—	4:28	—	—	4:28	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A moderate fall of snow heaviest on Sun morning. Turning milder with heavy rain (total 53mm), heaviest during Tue night. Freeze-thaw conditions (max 4°C on Tue night, min -3°C on Sun night). Winds increasing (near gales from the W on Sun night, stormy winds from the W by Tue night).

South Sister Volcano Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Wed morning. Mild temperatures (max 7°C on Fri morning, min 1°C on Wed night). Winds decreasing (extremely windy from the W on Wed morning, light winds from the WNW by Fri 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	2° C	-	Calm (0 kph at 62).
Sisters wx 25 km NNE 1022m alt. 2 hours ago	3° C	Dry	Calm (0 kph at 245).
Sunriver 34 km SE 1242m alt. 52 minutes ago		Dry
Bend 34 km E 1164.6m alt. 59 minutes ago	7° C	Dry	Light winds from the SSE (13 kph at 163).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	2° C	Dry and cloudy.	Light winds from the SSW (17 kph at 210).	16 km Low: overcast
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	2° C	-	Calm (5 kph at 291).
Bend 37 km SSE 1297m alt. 1 hour ago	-2° C	-	Calm (2 kph at 0).
Bend 37 km ESE 1158m alt. 2 hours ago	7° C	Dry	Calm (0 kph at 160).
Bend wx 39 km E 1118m alt. 3 hours ago	6° C	Dry	Light winds from the S (8 kph at 182).
Camp Sherman 39 km NNE 920.5m alt. 2 hours ago		Dry

* 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.