All Trails

South Sister

Pacific NW · 44.103, -121.769

Oregon's third highest peak and the state's most climbed glacier peak. 12 miles round trip with 4,900 ft gain. Non-technical but relentless scree.

StrenuousPacific NW10,358 ftSummitAlpineScrambleSummit viewsGeology

South Sister

⛅ Overcast

Good to Go
53°
Feels 53°FSummit · 10,358 ft
5:42 AM8:44 PM
CLEAR

Wind

9mph

Precip

1%

Humid

52%

Elev Δ

+4900ft

12-Hour Temp Trend

46°52°

Hourly Forecast

2 AM

⛅

47°

5mph

3 AM

⛅

47°

4mph

4 AM

⛅

47°

5mph

5 AM

⛅

47°

6mph

6 AM

⛅

47°

4mph

7 AM

⛅

46°

10mph

8 AM

⛅

46°

10mph

9 AM

⛅

47°

9mph

10 AM

⛅

50°

7mph

11 AM

⛅

50°

8mph

12 PM

⛅

52°

9mph

1 PM

⛅

52°

9mph

Summit Conditions

80°F→−27°→53°F

Dry lapse rate: 5.4°F/1,000ft · 4,908 ft gain

◎L1
Synthetic/merino blend long sleeve

150g merino or synthetic blend for moisture management

◉L2
Light fleece or vestPACK

Microfleece pullover — pack it, don't wear it at the trailhead

Summit Pack List

↟Light fleece↟Wind shell

Start Cold Tip

Start in just your base layer — you'll warm up within 10 minutes on the trail. Keep your fleece accessible in the top of your pack for the summit.

Trail Guide

Updated 1:47:43 AM · America/Los_Angeles

Updated Jul 20, 1:47 AM UTC

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