All Trails

Mount Si

North Bend, WA · 47.488, -121.724

The most hiked trail in Washington state. 8 miles round trip with 3,150 ft gain through old-growth forest. Optional Class 3 haystack scramble at top.

ModeratePacific NW3,900 ftForestScrambleSummitSummit views

Mount Si

⛅ Overcast

Good to Go
57°
Feels 57°FSummit · 3,900 ft
5:12 AM8:58 PM
CLEAR

Wind

1mph

Precip

3%

Humid

67%

Elev Δ

+3200ft

12-Hour Temp Trend

49°59°

Hourly Forecast

8 PM

⛅

59°

4mph

9 PM

⛅

57°

2mph

10 PM

☀️

55°

1mph

11 PM

☀️

54°

0mph

12 AM

☀️

52°

5mph

1 AM

⛅

50°

5mph

2 AM

⛅

49°

4mph

3 AM

⛅

50°

3mph

4 AM

⛅

50°

2mph

5 AM

⛅

50°

4mph

6 AM

⛅

50°

3mph

7 AM

⛅

50°

4mph

Summit Conditions

74°F→−17°→57°F

Dry lapse rate: 5.4°F/1,000ft · 3,150 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 7:40:14 PM · America/Los_Angeles

Updated Jun 4, 7:40 PM UTC

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