– Lat/Long: 44.10° N 121.77° W

South Sister Volcano Weather Forecast

Cascade Range · United States

Issued: 10 pm Sun 20 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Sun 20 Sep Local Time

Updates in:

hr min s

Update imminent

3 South Sister Volcano Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 12°C on Mon afternoon, min 5°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 9°C on Thu afternoon, min -3°C on Fri morning). Winds decreasing (near gales from the WSW on Thu night, calm by Fri afternoon).
		Monday 21			Tuesday 22			Wednesday 23			Thursday 24			Friday 25
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	some clouds	some clouds	cloudy	clear	clear	some clouds	some clouds	some clouds	some clouds	cloudy	snow shwrs	some clouds	clear	some clouds
Cloud base (m)					6800			6900	6000	6450	6050	5300	1900	1850	9150
km/h	SW	WSW	WSW	WSW	W	WSW	WSW	SW	SSW	SSW	SW	SW	WSW	WNW	W	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	1	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	4	—	—	—
max °C	10	11	12	9	8	9	6	8	9	8	8	9	3	-1	3	5
min °C	10	10	11	7	7	8	5	6	9	7	7	8	-2	-3	3	3
chill °C	9	10	10	4	4	6	1	2	7	3	2	3	-11	-11	-1	0

Freezing level m	4100	4000	4050	3950	3750	3700	3800	3700	3800	3900	3650	3650	2600	2400	3050	3700

	—	6:52	—	—	6:52	—	—	6:54	—	—	6:56	—	—	6:56	—	—
	—	—	7:06	—	—	7:05	—	—	7:02	—	—	7:00	—	—	6:59	—

South Sister Volcano Weather (Days 0-3):

The weather forecast for South Sister Volcano is: Mostly dry. Very mild (max 12°C on Mon afternoon, min 5°C on Tue night). Wind will be generally light.

South Sister Volcano Weather (Days 3-6):

Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 9°C on Thu afternoon, min -3°C on Fri morning). Winds decreasing (near gales from the WSW on Thu night, calm by Fri afternoon).

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. 1 hour ago	9°C	Dry	Calm (0 kph at 0).
Bend 34 km E 1147m alt. 2 hours ago	9°C	Dry	Calm (0 kph at —).
Bend 34 km E 1164.6m alt. 1 hour ago	16°C	Dry	Calm (0 kph at 144).
Sunriver Airport (Oregon) 35 km SE 1266m alt. 2 hours ago	6°C	Clear	Calm (0 kph at 0).	16 km
Black Butte Ranch wx 36 km NW 1429m alt. 2 hours ago	10°C	Dry	Calm (0 kph at 219).
Bend 37 km SSE 1297m alt. 57 minutes ago	3°C	Dry	Calm (0 kph at 0).
Bend 37 km ESE 1158m alt. 1 hour ago	11°C	Dry	Calm (0 kph at 325).
Deschutes River Woods wx 40 km ESE 1185m alt. 1 hour ago	8°C	Dry	Calm (2 kph at 340).
Rainbow wx 41 km WSW 410m alt. 1 hour ago	17°C	Dry	Light winds from the ENE (13 kph at 64).
Cloverdale wx 42 km NE 947m alt. 2 hours ago	8°C	Dry	Calm (0 kph at 176).

* 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.