– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 10 am Sun 20 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 10 am Sun 20 Sep 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 13°C on Sun afternoon, min 5°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 9°C on Wed morning, min -2°C on Fri morning). Winds decreasing (near gales from the SW on Thu night, light winds from the WNW by Fri afternoon).
	Sunday 20			Monday 21			Tuesday 22			Wednesday 23			Thursday 24			Friday 25
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	cloudy	some clouds	cloudy	clear	clear	some clouds	cloudy	some clouds	cloudy	cloudy	snow shwrs	snow shwrs	clear	some clouds
Cloud base (m)			9400				6650			6750	5350	6250	5800	3450	1900	1850		6300
km/h	SE	SE	SSW	SW	SW	WSW	W	WSW	WSW	SW	SSW	SSW	SW	SW	WSW	WNW	WNW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6	—	—	—
max °C	12	13	11	12	12	9	8	9	6	9	9	8	9	9	5	-1	2	3
min °C	10	13	10	10	11	7	7	8	5	6	9	8	8	8	0	-2	1	1
chill °C	10	13	9	9	10	4	4	5	1	3	7	4	4	3	-8	-10	-3	-1

Freezing level m	4150	4200	4150	4050	4050	3950	3750	3700	3800	3800	3850	3950	3700	3600	2550	2400	2850	3350

	6:50	—	—	6:52	—	—	6:52	—	—	6:54	—	—	6:56	—	—	6:56	—	—
	—	7:07	—	—	7:06	—	—	7:05	—	—	7:02	—	—	7:00	—	—	6:59	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Very mild (max 13°C on Sun afternoon, min 5°C on Tue night). Wind will be generally light.

South Sister Volcano Weather (Days 3-6):

Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 9°C on Wed morning, min -2°C on Fri morning). Winds decreasing (near gales from the SW on Thu night, light winds from the WNW by Fri 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	27°C	Dry	Calm (3 kph at 24).
Bend 34 km E 1147m alt. 44 minutes ago	27°C	Dry	Calm (3 kph at 347).
Bend 34 km E 1164.6m alt. 1 hour ago	27°C	Dry	Calm (3 kph at 22).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	25°C	Clear	Light winds from the WSW (7 kph at 240).	13 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	21°C	Dry	Calm (0 kph at 114).
Bend 37 km SSE 1297m alt. 1 hour ago	26°C	Dry	Calm (3 kph at 98).
Bend 37 km ESE 1158m alt. 57 minutes ago	28°C	Dry	Calm (0 kph at 248).
Deschutes River Woods wx 40 km ESE 1185m alt. 48 minutes ago	26°C	Dry	Calm (3 kph at 20).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	23°C	Dry	Light winds from the WSW (14 kph at 244).
Cloverdale wx 42 km NE 947m alt. 1 hour ago	29°C	Dry	Calm (3 kph at 48).

* 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.