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Rattlesnake Mountain Scenic Area

Mountain bike trail conditions · Seattle & Snoqualmie, WA 47.430° N  121.723° W   2,418 FT

PRIME: Rideable now

No significant rain in the forecast.

Recent rain
No measurable rain in the past week
Today
78°Fclear
Last 10 daysoldest to newest

Updated Aug 21, 2026, 00:00 UTC. Modeled hourly. Official closures and current trail conditions take priority.

Trail outlook

7 days back · 4 ahead
FORECAST
PRIME 7d 2026-08-13: 0.00 inches of rain, representative trail outlook PRIME
PRIME 6d 2026-08-14: 0.00 inches of rain, representative trail outlook PRIME
PRIME 5d 2026-08-15: 0.00 inches of rain, representative trail outlook PRIME
PRIME 4d 2026-08-16: 0.00 inches of rain, representative trail outlook PRIME
PRIME 3d 2026-08-17: 0.00 inches of rain, representative trail outlook PRIME
PRIME 2d 2026-08-18: 0.00 inches of rain, representative trail outlook PRIME
PRIME 1d 2026-08-19: 0.00 inches of rain, representative trail outlook PRIME
78° PRIME Today 2026-08-20: 0.00 inches of rain, Clear, representative trail outlook PRIME
83° PRIME FRI 2026-08-21: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
66° PRIME SAT 2026-08-22: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
67° PRIME SUN 2026-08-23: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
76° PRIME MON 2026-08-24: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
No measurable rain in the window. Over the tracked history, Rattlesnake Mountain Scenic Area has been rideable on 10 of the last 10 days. Daily trail markers are representative daytime outlooks. Weather is one input. The rideability verdict also accounts for soil, terrain, canopy, and drying time.
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Why Rattlesnake Mountain Scenic Area dries this way

Terrain & soil

Rattlesnake Mountain Scenic Area sits in the Seattle & Snoqualmie, WA area, on sandy soil that drains fast over terrain that sheds water and dries quickly. Heavy tree cover holds the damp in, so it stays wet longer than the sky overhead would suggest. Whether it’s worth riding comes down to how that ground sheds and holds water after rain. That’s exactly what Loam tracks, hour by hour. The terrain here is steep (a 17.1° average grade at 2,418 ft) and sheds water fast once the rain stops, while the WNW-facing aspect gets its strongest sun in the afternoon, so morning laps can stay tacky after overnight moisture.

Network profile

Soil
Sandydrains fast
Drainage
Sheds waterdries quickly
Tree cover
82%Dense
Elevation
2,418 ft
Average grade
17.1°
Predominant aspect
WNW-facing
How these factors affect drying

SoilSandy

Sandy, coarse soil sheds water fast. These trails are among the quickest to recover after rain.

CanopyDense 82%

Heavy tree cover shades the soil and blocks wind, so these trails dry slowly and can hold morning damp even after dry days.

TerrainSheds water

Water runs off this terrain rather than pooling, which helps the surface dry out after rain.

Around Rattlesnake Mountain Scenic Area

FAQ

Common questions
Can you ride Rattlesnake Mountain Scenic Area right now?

As of the latest update, Rattlesnake Mountain Scenic Area is Rideable now (PRIME). No significant rain in the forecast. No measurable rain in the past week.

What is the soil and trail surface like at Rattlesnake Mountain Scenic Area?

Rattlesnake Mountain Scenic Area sits on sandy soil that drains fast. Sandy, coarse soil sheds water fast. These trails are among the quickest to recover after rain.

How long does Rattlesnake Mountain Scenic Area take to dry after rain?

Rattlesnake Mountain Scenic Area usually needs only a few hours to recover after light rain. Its terrain sheds water, which speeds drying. Heavy tree cover slows drying further.

Does Rattlesnake Mountain Scenic Area get snow in winter?

Yes. At 2,418 ft, Rattlesnake Mountain Scenic Area typically sees winter snow and freeze-thaw that can pause riding. Loam flags a FROZEN state when the ground is snow-covered or frozen, then clears it as things thaw and dry.

What's the terrain and elevation like at Rattlesnake Mountain Scenic Area?

Rattlesnake Mountain Scenic Area sits at roughly 2,418 feet, faces mostly WNW, and averages a 17.1° grade with about 82% tree cover. That makes it an afternoon-sun network where mornings run tackier, and the steep grade means it sheds water quickly. Loam models this exact ground against live weather rather than using one regional forecast.

When is the best time of year to ride Rattlesnake Mountain Scenic Area?

The reliable season at Rattlesnake Mountain Scenic Area runs late spring through fall: at around 2,418 feet it holds real winter snowpack, and freeze-thaw makes the shoulder seasons hit or miss. Loam flags FROZEN days and posts a live verdict, so the calendar never has to be the tiebreaker.