– Lat/Long: 44.10° N 121.77° W

South Sister Volcano
Weather Forecast, United States
Issued: 10 am Sat 04 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 04 May 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 Sat night. Temperatures will be below freezing (max -2°C on Sat morning, min -10°C on Mon night). Winds increasing (light winds from the SSW on Sat morning, gales from the WSW by Mon morning).									Days 4–6 Weather Summary A light covering of new snow mostly falling on Tue morning. Freeze-thaw conditions (max 1°C on Thu afternoon, min -10°C on Tue morning). Winds decreasing (near gales from the WNW on Tue morning, moderate winds from the NE by Wed night).
	Saturday 4			Sunday 5			Monday 6			Tuesday 7			Wednesday 8			Thursday 9
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. snow	light snow	heavy snow	mod. snow	light snow	mod. snow	light snow	mod. snow	heavy snow	snow shwrs	snow shwrs	some clouds	clear	clear	clear	clear	clear	clear
km/h	SSW	WNW	WNW	NW	W	W	WSW	W	WNW	NW	NW	NNW	N	N	NE	ENE	ENE	ESE
Wave Height Map See all maps
cm	8	4	17	7	3	6	5	9	16	3	2.0	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-2	-7	-7	-5	-4	-4	-5	-6	-9	-8	-5	-3	-1	0	0	0	1	1
min°C	-4	-7	-8	-7	-5	-6	-5	-8	-10	-10	-7	-4	-2	-1	-2	-1	1	1
chill°C	-8	-15	-19	-18	-15	-16	-15	-20	-22	-22	-18	-13	-10	-7	-9	-9	-6	-6

Freezing level (m)	1500	1400	1100	1400	1450	1250	1650	1350	1050	1250	1550	800	2200	2350	1700	2500	2600	2900
Cloud base (m)	1800	1800	1800	1850	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1800	1850	1900

	5:52	—	—	5:52	—	—	5:50	—	—	5:48	—	—	5:48	—	—	5:46	—	—
	—	—	8:14	—	—	8:15	—	—	8:16	—	—	8:17	—	—	8:19	—	—	8:20

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: A heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -2°C on Sat morning, min -10°C on Mon night). Winds increasing (light winds from the SSW on Sat morning, gales from the WSW by Mon morning).

South Sister Volcano Weather (Days 3-6):

A light covering of new snow mostly falling on Tue morning. Freeze-thaw conditions (max 1°C on Thu afternoon, min -10°C on Tue morning). Winds decreasing (near gales from the WNW on Tue morning, moderate winds from the NE by Wed 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
Sunriver wx 23 km SE 1684m alt. 53 minutes ago	3° C	-	Calm (0 kph at 152).
Sisters wx 25 km NNE 1022m alt. 35 minutes ago	7° C	Dry	Calm (2 kph at 235).
Sisters 32 km NE 964m alt. 44 minutes ago	6° C	Dry	Light winds from the W (6 kph at 261).
Bend 34 km E 1147m alt. 59 minutes ago	7° C	Dry	Calm (5 kph at 286).
Sunriver 34 km SE 1242m alt. 39 minutes ago		Dry

* 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.