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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

No significant rain in the forecast.

Recent rain
No measurable rain in the past week
Today
65°Ffog or low cloud

Updated Sep 13, 2026, 05:47 UTC. Modeled hourly. Unchanged for 10+ days. Official closures and current trail conditions take priority.

Last 10 daysoldest to newest

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Trail outlook

Is Lake Whatcom rideable today?

Yes. The live verdict is PRIME, rideable now. No measurable rain in the past week.

FORECAST
PRIME 7d 2026-09-05: 0.00 inches of rain, representative trail outlook PRIME
PRIME 6d 2026-09-06: 0.00 inches of rain, representative trail outlook PRIME
PRIME 5d 2026-09-07: 0.00 inches of rain, representative trail outlook PRIME
PRIME 4d 2026-09-08: 0.00 inches of rain, representative trail outlook PRIME
PRIME 3d 2026-09-09: 0.00 inches of rain, representative trail outlook PRIME
PRIME 2d 2026-09-10: 0.00 inches of rain, representative trail outlook PRIME
PRIME 1d 2026-09-11: 0.00 inches of rain, representative trail outlook PRIME
65° PRIME Today 2026-09-12: 0.00 inches of rain, Fog or low cloud, representative trail outlook PRIME
64° PRIME SUN 2026-09-13: 0.00 inches of forecast rain, Fog or low cloud, representative trail outlook PRIME
60° PRIME MON 2026-09-14: 0.00 inches of forecast rain, Fog or low cloud, representative trail outlook PRIME
65° PRIME TUE 2026-09-15: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
71° PRIME WED 2026-09-16: 0.00 inches of forecast rain, Clear, representative trail outlook PRIME
No measurable rain in the window. Over the tracked history, Lake Whatcom has been rideable on 10 of the last 10 days. Each daily marker shows the expected daytime condition. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Lake Whatcom

Lake Whatcom is a mountain bike trail network in Bellingham, WA. The soil is loam and drains well. Heavy tree cover can slow drying after rain. The terrain averages a 21.5° slope at 1,437 ft and mainly faces WSW. Its steep slopes shed water quickly after rain.

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.

FAQ

Can you ride Lake Whatcom right now?

The current estimate for Lake Whatcom is PRIME: rideable now. No significant rain in the forecast. No measurable rain in the past week.

Is Lake Whatcom muddy right now?

Loam currently estimates dry conditions (PRIME). No measurable rain in the past week.

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?

Drying time depends on how much rain fell and the weather that follows. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

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. It is exposed to afternoon sun, and the steep terrain sheds water quickly.

When is the best time of year to ride Lake Whatcom?

Snow can limit riding at Lake Whatcom in winter, at around 1,437 feet. Spring snowmelt and fall freezes can also affect conditions. Check the current conditions before planning a ride.

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Network profile

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

Around Lake Whatcom