– Lat/Long: 44.10° N 121.77° W

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

Issued: 10 am Fri 10 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary Drizzle, on Fri afternoon followed by colder weather and a moderate fall of snow, heaviest on Sat night.. Freeze-thaw conditions (max 3°C on Fri afternoon, min -5°C on Sun night). Winds increasing (light winds from the SSW on Fri night, fresh winds from the WNW by Sun night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max -4°C on Mon morning, min -13°C on Wed night). Winds increasing (moderate winds from the WNW on Mon morning, severe gales from the W by Tue night).
	Friday 10			Saturday 11			Sunday 12			Monday 13			Tuesday 14			Wednesday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	light rain	light snow	snow shwrs	light snow	light snow	cloudy	light snow	light snow	light snow	some clouds	some clouds	some clouds	light snow	heavy snow	snow shwrs	mod. snow	snow shwrs
km/h	S	SE	SSW	SW	SSE	S	WNW	NW	WNW	WNW	W	W	WSW	WSW	W	W	W	NNW
See all weather maps
cm	—	—	4	1	3	5	—	1	2	1	—	—	—	2	14	2	8	7
mm	—	1.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	3	1	-3	-1	-2	-3	-4	-4	-4	-4	-4	-4	-6	-7	-11	-10	-11
min °C	1	2	-2	-3	-1	-3	-3	-4	-5	-5	-4	-5	-4	-6	-10	-11	-11	-13
chill °C	-5	-1	-6	-9	-4	-8	-8	-11	-12	-12	-11	-13	-12	-17	-23	-23	-23	-24

Freezing level m	2750	2750	2400	2100	2350	2050	2000	1900	1550	1600	1700	800	1750	1550	1250	1100	1050	400
Cloud base (m)		2900	1850	1800	2200	2000	1900	1800	1800	1800	1800	1800	1800	1800	1800	1850	1800	1800

	6:31	—	—	6:31	—	—	6:28	—	—	6:26	—	—	6:24	—	—	6:24	—	—
	—	7:44	—	—	7:45	—	—	7:46	—	—	7:47	—	—	7:49	—	—	7:50	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Drizzle, on Fri afternoon followed by colder weather and a moderate fall of snow, heaviest on Sat night.. Freeze-thaw conditions (max 3°C on Fri afternoon, min -5°C on Sun night). Winds increasing (light winds from the SSW on Fri night, fresh winds from the WNW by Sun night).

South Sister Volcano Weather (Days 3-6):

A heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max -4°C on Mon morning, min -13°C on Wed night). Winds increasing (moderate winds from the WNW on Mon morning, severe gales from the W by Tue 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Sisters wx 25 km NNE 1022m alt. 46 minutes ago	17° C	Dry	Calm (2 kph at 159).
Bend 34 km E 1164.6m alt. 59 minutes ago	18° C	Dry	Calm (5 kph at 210).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	13° C	Clear	Wind obs. (11 kph from 230 degs) was rejected.	14 km
Bend 37 km SSE 1297m alt. 1 hour ago	15° C	Dry	Calm (2 kph at 298).
Bend 37 km ESE 1158m alt. 45 minutes ago	18° C	Dry	Calm (0 kph at 85).
Bend wx 39 km E 1118m alt. 2 hours ago	15° C	Dry	Wind obs. (11 kph from 217 degs) was rejected.
Deschutes River Woods wx 40 km ESE 1185m alt. 32 minutes ago	14° C	Dry	Calm (0 kph at 186).
Cloverdale wx 42 km NE 947m alt. 58 minutes ago	19° C	Dry	Calm (0 kph at 53).
La Pine 43 km SSE 1298m alt. 33 minutes ago	14° C	Dry	Calm (2 kph at 86).
Redmond 45 km ENE 933m alt. 1 hour ago	19° C	Dry	Calm (5 kph at 277).

* 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.