– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 pm Tue 29 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 29 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 4°C on Thu morning, min -2°C on Tue afternoon). Winds decreasing (strong winds from the NNW on Tue afternoon, calm by Wed afternoon).											Days 5–7 Weather Summary A moderate fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -8°C on Sat morning). Mainly strong winds.
	Tue 29		Wednesday 30			Thursday 1			Friday 2			Saturday 3			Sunday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	clear	clear	clear	clear	clear	clear	clear	clear	snow shwrs	light snow	mod. snow	light snow	clear	clear	clear	clear
km/h	NNW	NNW	NNW	ENE	ENE	SE	SSE	SSW	S	S	SW	W	NW	NNW	NNE	NE	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	1.0	3	8	1.0	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-1	-1	-2	-1	2	4	4	4	2	1	-1	-8	-6	-5	-6	-6	-2
min°C	-2	-2	-2	-2	1	3	2	2	1	1	-6	-8	-8	-7	-7	-6	-4
chill°C	-10	-10	-9	-5	0	0	-1	-4	-4	-3	-14	-16	-14	-14	-15	-14	-12

Freezing level (m)	3050	1550	2850	3000	3450	3700	3650	3550	3350	3250	2300	1750	1550	900	1450	2350	1450
Cloud base (m)	1800	1800	9000	3350	9500	9300	9500			2450	1800	1800	1800	1800	1800	1900

	—	—	6:00	—	—	5:58	—	—	5:56	—	—	5:56	—	—	5:54	—	—
	—	8:07	—	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:13

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Freeze-thaw conditions (max 4°C on Thu morning, min -2°C on Tue afternoon). Winds decreasing (strong winds from the NNW on Tue afternoon, calm by Wed afternoon).

South Sister Volcano Weather (Days 3-6):

A moderate fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -8°C on Sat morning). Mainly strong winds.

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 969m alt. 31 minutes ago	9° C	Dry	Calm (5 kph at 311).
Sisters wx 25 km NNE 1022m alt. 1 hour ago	10° C	Dry	Calm (3 kph at 347).
Bend 34 km E 1147m alt. 3 hours ago	14° C	Dry	Wind obs. (8 kph from 96 degs) was rejected.
Sunriver 34 km SE 1242m alt. 32 minutes ago		Dry
Bend 34 km E 1164.6m alt. 58 minutes ago	12° C	Dry	Calm (3 kph at 75).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 1 hour ago	10° C	Clear	Light winds from the W (13 kph at 280).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 3 hours ago	7° C	Dry	Calm (3 kph at 298).
Bend wx 36 km E 1118m alt. 36 minutes ago	22° C	Dry	Calm (2 kph at 28).
Bend 37 km SSE 1297m alt. 1 hour ago	9° C	Dry	Light winds from the WNW (8 kph at 292).
Bend 37 km ESE 1158m alt. 1 hour ago	12° C	Dry	Calm (2 kph at 324).

* 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.