– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 4 am Thu 25 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Thu 25 Apr Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -5°C on Sat night, min -10°C on Thu night). Winds decreasing (severe gales from the WSW on Thu afternoon, fresh winds from the WNW by Sat morning).									Days 4–6 Weather Summary Mostly dry. Temperatures will be below freezing (max -3°C on Tue night, min -11°C on Mon morning). Winds decreasing (gales from the W on Sun night, fresh winds from the SW by Tue afternoon).
	Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	heavy snow	light snow	light snow	light snow	some clouds	light snow	snow shwrs	cloudy	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds
km/h	WSW	WSW	WSW	W	WNW	WNW	W	W	WNW	W	W	W	W	W	W	SW	SW	SSW
Wave Height Map See all maps
cm	1.0	5	15	3	2.0	3	—	1.0	2.0	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-6	-7	-8	-10	-9	-8	-6	-6	-5	-5	-8	-8	-10	-8	-8	-6	-4	-3
min°C	-6	-7	-10	-10	-10	-9	-7	-6	-7	-6	-8	-9	-11	-9	-9	-7	-5	-4
chill°C	-16	-19	-22	-22	-21	-20	-16	-17	-18	-16	-19	-21	-24	-20	-21	-16	-13	-14

Freezing level (m)	2100	1900	1700	1700	1700	1500	1850	1950	1800	1950	1900	1100	1400	1700	950	2300	2650	2450
Cloud base (m)	1800	1800	1800	1800	1800	1800	1800	1950	1800	1800	1850	1800	1800	1850	1800		2750	3900

	6:05	—	—	6:03	—	—	6:03	—	—	6:01	—	—	6:00	—	—	5:58	—	—
	—	—	8:04	—	—	8:05	—	—	8:06	—	—	8:07	—	—	8:07	—	—	8:09

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -5°C on Sat night, min -10°C on Thu night). Winds decreasing (severe gales from the WSW on Thu afternoon, fresh winds from the WNW by Sat morning).

South Sister Volcano Weather (Days 3-6):

Mostly dry. Temperatures will be below freezing (max -3°C on Tue night, min -11°C on Mon morning). Winds decreasing (gales from the W on Sun night, fresh winds from the SW by Tue afternoon).

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
Sunriver wx 23 km SE 1684m alt. 40 minutes ago	3° C	-	Calm (0 kph at 152).
Sisters wx 25 km NNE 1022m alt. 37 minutes ago	6° C	Dry	Calm (0 kph at 231).
Sisters wx 25 km NNE 969m alt. 2 hours ago	3° C	Dry	Calm (0 kph at 0).
Sisters 32 km NE 964m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 257).
Bend 34 km E 1147m alt. 1 hour ago	6° C	Dry	Calm (5 kph at 339).

* 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.