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Lake Whatcom

Mountain bike trail conditions · Bellingham, WA 48.724° N  122.294° W   1,437 FT Verified

PRIME: Rideable now

Rain returns in ~2 days.

Recent rain
0.1″ of rain, 3d ago
Next rain
~2d
Today
67°Fpartly cloudy
Last 10 daysoldest to newest

Updated Aug 26, 2026, 17:40 UTC. Modeled hourly. Official closures and current trail conditions take priority.

Is Lake Whatcom rideable today?

Yes. The live verdict is PRIME, rideable now. 0.1″ of rain, 3d ago.

Trail outlook

0.1″
0.2″
0.2″
FORECAST
DUSTY 7d 2026-08-19: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 6d 2026-08-20: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 5d 2026-08-21: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 4d 2026-08-22: 0.00 inches of rain, representative trail outlook DUSTY
CAUTION 3d 2026-08-23: 0.10 inches of rain, representative trail outlook CAUTION
PRIME 2d 2026-08-24: 0.00 inches of rain, representative trail outlook PRIME
PRIME 1d 2026-08-25: 0.00 inches of rain, representative trail outlook PRIME
67° PRIME Today 2026-08-26: 0.00 inches of rain, Partly cloudy, representative trail outlook PRIME
69° PRIME THU 2026-08-27: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
65° PRIME FRI 2026-08-28: 0.20 inches of forecast rain, Light rain, representative trail outlook PRIME
58° CAUTION SAT 2026-08-29: 0.20 inches of forecast rain, Light rain, representative trail outlook CAUTION
55° PRIME SUN 2026-08-30: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
Measured rain Forecast rain Above soft threshold (0.5″)
Over the tracked history, Lake Whatcom has been rideable on 9 of the last 10 days (very dry and dusty on 6 of them), and under a caution advisory on 1. Daily trail markers are representative daytime outlooks. Weather is one input. The rideability verdict also accounts for soil, terrain, canopy, and drying time.

Why Lake Whatcom dries this way

Lake Whatcom (Bellingham, WA) rides on loam soil that drains well 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. 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 terrain here is steep (a 21.5° average grade at 1,437 ft) and sheds water fast once the rain stops, while the WSW-facing aspect gets its strongest sun in the afternoon, so morning laps can stay tacky after overnight moisture.

Network profile

Soil
Loamdrains well
Drainage
Sheds waterdries quickly
Tree cover
82%Dense
Elevation
1,437 ft
Average grade
21.5°
Predominant aspect
WSW-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 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 Lake Whatcom

FAQ

Can you ride Lake Whatcom right now?

As of the latest update, Lake Whatcom is Rideable now (PRIME). Rain returns in ~2 days. 0.1″ of rain, 3d ago.

Is Lake Whatcom muddy right now?

No. The current verdict is PRIME, which means the model reads the surface as dry. 0.1″ of rain, 3d ago.

What is the soil and trail surface like at Lake Whatcom?

Lake Whatcom 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 Lake Whatcom take to dry after rain?

Lake Whatcom usually needs about a day or two to dry after meaningful rain. Its terrain sheds water, which speeds drying. Heavy tree cover slows drying further.

Can you ride Lake Whatcom after rain?

Usually yes, once the surface has had time to firm up, typically a day or two after meaningful rain. Rather than counting days, check the live verdict above: it already accounts for how much rain actually fell here and how fast this exact ground, with its slope and tree cover, gives back a firm, dry surface.

Does Lake Whatcom get snow in winter?

Yes. At 1,437 ft, Lake Whatcom 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 Lake Whatcom?

Lake Whatcom sits at roughly 1,437 feet, faces mostly WSW, and averages a 21.5° 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 Lake Whatcom?

The reliable season at Lake Whatcom runs late spring through fall: at around 1,437 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.

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