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

⛅ Mainly clear

Good to Go
56°
Feels 56°FSummit · 3,900 ft
6:27 AM7:45 PM
CLEAR

Wind

1mph

Precip

7%

Humid

76%

Elev Δ

+3200ft

12-Hour Temp Trend

52°69°

Hourly Forecast

11 AM

⛅

68°

4mph

12 PM

⛅

69°

7mph

1 PM

⛅

68°

1mph

2 PM

🌧️

63°

7mph

3 PM

🌧️

63°

1mph

4 PM

🌧️

63°

2mph

5 PM

🌧️

63°

3mph

6 PM

🌧️

59°

7mph

7 PM

🌧️

58°

4mph

8 PM

☀️

53°

6mph

9 PM

☀️

52°

5mph

10 PM

⛅

53°

5mph

Summit Conditions

65°F→−9°→56°F

Wet lapse rate: 2.7°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 10:00:16 AM · America/Los_Angeles

Updated Sep 2, 10:00 AM UTC

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