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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

Trails are dry, excuses aren't.

Recent rain
0.1″ of rain, 2d ago
Today
64°Fcloudy
Last 8 daysoldest to newest

Modeled estimate updated Jul 18, 2026, 1:53 AM local time. Official closures and current trail conditions take priority.

Moisture outlook

7 days back · 4 ahead
SOFT ABOVE 0.5″
FORECAST
2026-07-11: 0.00 inches of rain
2026-07-12: 0.00 inches of rain
2026-07-13: 0.00 inches of rain
2026-07-14: 0.00 inches of rain
2026-07-15: 0.00 inches of rain
0.1″
2026-07-16: 0.10 inches of rain
2026-07-17: 0.00 inches of rain
64°
2026-07-18: 0.00 inches of rain, Cloudy
68°
2026-07-19: 0.00 inches of forecast rain, Clear
81°
2026-07-20: 0.00 inches of forecast rain, Cloudy
86°
2026-07-21: 0.00 inches of forecast rain, Cloudy
85°
2026-07-22: 0.00 inches of forecast rain, Cloudy
7d6d5d4d3d2d1dTodaySUNMONTUEWED
Measured rain Forecast rain Above soft threshold

Over the tracked history, Rattlesnake Mountain Scenic Area has been rideable (PRIME) on 7 of the last 8 days, and too wet to ride on 1. Weather is one input. The rideability verdict also accounts for soil, terrain, canopy, and drying time.

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
81%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 81%

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.

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Nearby networks in Seattle & Snoqualmie, WA

Seattle & Snoqualmie, WA
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FAQ

Can you ride Rattlesnake Mountain Scenic Area right now?

As of the latest update, Rattlesnake Mountain Scenic Area is Rideable now (PRIME). Trails are dry, excuses aren't. 0.1″ of rain, 2d ago.

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 81% 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.