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Banner Forest

Mountain bike trail conditions · Seattle & Snoqualmie, WA 47.484° N  122.556° W   433 FT

DUSTY: Rideable, very dry

Expect dust and loose corners.

Recent rain
No measurable rain in the past week
Today
81°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
0.1″
FORECAST
DUSTY 7d 2026-08-13: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 6d 2026-08-14: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 5d 2026-08-15: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 4d 2026-08-16: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 3d 2026-08-17: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 2d 2026-08-18: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 1d 2026-08-19: 0.00 inches of rain, representative trail outlook DUSTY
81° DUSTY Today 2026-08-20: 0.00 inches of rain, Clear, representative trail outlook DUSTY
87° DUSTY FRI 2026-08-21: 0.00 inches of forecast rain, Cloudy, representative trail outlook DUSTY
72° PRIME SAT 2026-08-22: 0.10 inches of forecast rain, Light rain, representative trail outlook PRIME
77° PRIME SUN 2026-08-23: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
78° PRIME MON 2026-08-24: 0.00 inches of forecast rain, Partly cloudy, representative trail outlook PRIME
Measured rain Forecast rain Above soft threshold (0.5″)
Over the tracked history, Banner Forest has been rideable on 10 of the last 10 days (very dry and dusty on 10 of them). 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 Banner Forest dries this way

Terrain & soil

Banner Forest (Seattle & Snoqualmie, WA) rides on loam soil that drains well over terrain that holds water and dries slowly. Heavy tree cover holds the damp in, so it stays wet longer than the sky overhead would suggest. Loam reads that exact ground against live weather, rather than leaning on a regional forecast that can’t tell you what the dirt is doing. The NW-facing aspect gets its strongest sun in the afternoon, so morning laps can stay tacky after overnight moisture, and the nearly flat terrain, about a 1.5° average grade at 433 ft, lets water sit, so the flat stretches are the last to firm up.

Network profile

Soil
Loamdrains well
Drainage
Holds waterdries slowly
Tree cover
81%Dense
Elevation
433 ft
Average grade
1.5°
Predominant aspect
NW-facing
How these factors affect drying

SoilLoam

Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful 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.

TerrainHolds water

Water tends to pool and linger here rather than running off, so the surface can stay damp well after the weather clears.

Around Banner Forest

FAQ

Common questions
Can you ride Banner Forest right now?

As of the latest update, Banner Forest is Rideable, very dry (DUSTY). Rideable, but very dry. Expect dust and loose corners. No measurable rain in the past week.

What is the soil and trail surface like at Banner Forest?

Banner Forest sits on loam soil that drains well. Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful rain.

How long does Banner Forest take to dry after rain?

Banner Forest usually needs about a day or two to dry after meaningful rain. Its terrain holds water in low spots, which slows it. Heavy tree cover slows drying further.

Does Banner Forest get snow in winter?

Yes. At 433 ft, Banner Forest 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 Banner Forest?

Banner Forest sits at roughly 433 feet, faces mostly NW, and averages a 1.5° grade with about 81% tree cover. That makes it an afternoon-sun network where mornings run tackier, and the nearly flat grade means it holds puddles in the flats. Loam models this exact ground against live weather rather than using one regional forecast.

When is the best time of year to ride Banner Forest?

The reliable season at Banner Forest runs late spring through fall: at around 433 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.