– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 pm Tue 29 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 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 Some drizzle, heaviest during Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (fresh winds from the NW on Tue night, calm by Wed afternoon).										Days 5–7 Weather Summary Mild at first with light rain (total 2mm) on Fri night followed by colder weather and light fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 6°C on Mon afternoon, min -5°C on Sat night). Winds increasing (light winds from the SW on Fri night, strong winds from the NE by Sun night).
		Wednesday 30			Thursday 1			Friday 2			Saturday 3			Sunday 4			Monday 5
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	risk tstorm	light snow	mod. snow	cloudy	some clouds	clear	some clouds	clear	clear	clear	some clouds
km/h	NNW	NNW	NE	E	SE	SSE	SSW	S	SSW	WSW	WNW	NW	NNW	NNW	N	NE	NNE	N	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	4	10	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	1.8	2	—	—	—	—	—	—	—	—	—
max°C	1	2	4	4	8	10	7	7	7	3	-3	-3	-3	-3	-4	1	5	6	5
min°C	-1	1	3	3	6	8	5	6	4	-2	-4	-3	-5	-5	-4	-4	3	6	4
chill°C	-7	-4	1	2	4	6	2	3	2	-5	-9	-7	-12	-12	-9	-11	-3	2	1

Freezing level (m)	1400	2900	3000	3500	3700	3700	3550	3350	3150	2400	1750	1700	1000	1500	1950	2250	3400	3300	3600
Cloud base (m)	1800	9150	2600		9550				2600	1800	1800	1850	1800	1800	2100	2050		9450	7100

	—	6:00	—	—	5:58	—	—	5:56	—	—	5:56	—	—	5:54	—	—	5:52	—	—
	—	—	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:13	—	—	8:14

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Some drizzle, heaviest during Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (fresh winds from the NW on Tue night, calm by Wed afternoon).

South Sister Volcano Weather (Days 3-6):

Mild at first with light rain (total 2mm) on Fri night followed by colder weather and light fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 6°C on Mon afternoon, min -5°C on Sat night). Winds increasing (light winds from the SW on Fri night, strong winds from the NE by Sun 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	7° C	Dry	Calm (3 kph at 313).
Sisters wx 25 km NNE 1022m alt. 45 minutes ago	7° C	Dry	Calm (2 kph at 292).
Sunriver 34 km SE 1242m alt. 2 hours ago		Dry
Bend 34 km E 1164.6m alt. 35 minutes ago	5° C	Dry	Wind obs. (6 kph from 179 degs) was rejected.
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	1° C	Clear	Light winds from the SW (7 kph at 230).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 59 minutes ago	3° C	Dry	Light winds from the WNW (8 kph at 298).
Bend wx 36 km E 1118m alt. 1 hour ago		Dry
Bend 37 km SSE 1297m alt. 1 hour ago	4° C	Dry	Calm (3 kph at 271).
Bend 37 km ESE 1158m alt. 45 minutes ago	4° C	Dry	Calm (0 kph at 256).
Bend wx 39 km E 1118m alt. 1 hour ago	1° C	-	Calm (2 kph at 227).

* 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.