– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 4 am Fri 11 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 am Fri 11 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A light covering of new snow mostly falling on Sat night. Freeze-thaw conditions (max 4°C on Fri morning, min -7°C on Sat night). Winds increasing (moderate winds from the SW on Fri afternoon, near gales from the SW by Sat night).									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 8°C on Wed night, min 1°C on Mon afternoon). Winds increasing (calm on Mon afternoon, fresh winds from the NW by Tue night).
	Friday 11			Saturday 12			Sunday 13			Monday 14			Tuesday 15			Wednesday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	cloudy	clear	some clouds	cloudy	mod. snow	cloudy	some clouds	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear
Cloud base (m)		6900	8800		3150	1800	1850	1950		9300		9050	9450
km/h	WSW	SW	SW	SSW	SSW	W	WNW	NNW	WNW	NW	SSE	WNW	WNW	WNW	NW	NNE	WNW	W
See all weather maps
cm	—	—	—	—	—	9	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	3	3	2	-1	-3	-5	-3	1	2	2	4	4	4	5	6	6	8
min °C	3	3	3	1	-1	-7	-7	-5	-1	2	1	4	4	4	4	6	6	8
chill °C	-3	-2	-3	-6	-8	-18	-18	-14	-8	-4	1	0	-1	-1	-1	4	6	7

Freezing level m	3700	3600	3700	3300	3050	2050	2300	2650	3150	3500	3500	3850	3750	3750	3850	4100	4200	4400

	6:41	—	—	6:41	—	—	6:43	—	—	6:43	—	—	6:45	—	—	6:46	—	—
	—	7:24	—	—	7:22	—	—	7:21	—	—	7:19	—	—	7:17	—	—	7:15	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A light covering of new snow mostly falling on Sat night. Freeze-thaw conditions (max 4°C on Fri morning, min -7°C on Sat night). Winds increasing (moderate winds from the SW on Fri afternoon, near gales from the SW by Sat night).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Mild temperatures (max 8°C on Wed night, min 1°C on Mon afternoon). Winds increasing (calm on Mon afternoon, fresh winds from the NW by Tue night).

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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 2 hours ago	16°C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 53 minutes ago	17°C	Dry	Wind obs. (6 kph from 208 degs) was rejected.
Bend 34 km E 1164.6m alt. 2 hours ago	17°C	Dry	Calm (3 kph at 184).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	14°C	Clear	Light winds from the S (19 kph at 180).	14 km
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	14°C	Clear	Light winds from the S (19 kph at 180).	14 km
Black Butte Ranch wx 36 km NW 1429m alt. 1 hour ago	12°C	Dry	Calm (3 kph at 264).
Bend 37 km SSE 1297m alt. 1 hour ago	16°C	Dry	Calm (3 kph at 234).
Bend 37 km ESE 1158m alt. 2 hours ago	17°C	Dry	Calm (0 kph at 227).
Deschutes River Woods wx 40 km ESE 1185m alt. 2 hours ago	17°C	Dry	Calm (3 kph at 293).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	12°C	Dry	Wind obs. (6 kph from 159 degs) was rejected.

* 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.