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

☀️ Clear sky

Good to Go
73°
Feels 73°FSummit · 3,900 ft
5:30 AM8:56 PM
CLEAR

Wind

3mph

Precip

0%

Humid

59%

Elev Δ

+3200ft

12-Hour Temp Trend

55°65°

Hourly Forecast

10 PM

☀️

64°

4mph

11 PM

☀️

62°

3mph

12 AM

⛅

61°

2mph

1 AM

⛅

59°

5mph

2 AM

⛅

58°

4mph

3 AM

⛅

57°

3mph

4 AM

⛅

57°

3mph

5 AM

⛅

56°

2mph

6 AM

⛅

55°

2mph

7 AM

⛅

58°

2mph

8 AM

⛅

62°

1mph

9 AM

⛅

65°

1mph

Summit Conditions

90°F→−17°→73°F

Dry lapse rate: 5.4°F/1,000ft · 3,150 ft gain

◎L1
Synthetic wicking tee

Lightweight polyester or nylon blend that moves moisture fast

Summit Pack List

↟Sun hat↟Sunscreen SPF 50+↟Extra water (1L+)

Start Cold Tip

You'll be warm from the start. Focus on sun protection and hydration. If there's any breeze, enjoy it — it won't last at the summit.

Trail Guide

Updated 9:45:22 PM · America/Los_Angeles

Updated Jul 19, 9:45 PM UTC

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