LoamLoam App StoreGoogle Play

Grand Marais

Mountain bike trail conditions · Duluth, MN 47.773° N  90.296° W   1,053 FT Verified

PRIME: Rideable now

Rain returns in ~2 days.

Recent rain
0.1″ of rain, 4d ago
Next rain
~2d
Today
64°Ffog or low cloud

Updated Sep 12, 2026, 17:37 UTC. Modeled hourly. Unchanged for 10+ days. Official closures and current trail conditions take priority.

Last 10 daysoldest to newest

Watch conditions at Grand Marais

Watch one network free. No account needed.

After installing, search for Grand Marais and turn on alerts.

Already have Loam? Open this trail

Download on the App StoreGet it on Google Play

Trail outlook

Is Grand Marais rideable today?

Yes. The live verdict is PRIME, rideable now. 0.1″ of rain, 4d ago.

0.1″
0.8″
0.1″
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: 0.10 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
64° PRIME Today 2026-09-12: 0.00 inches of rain, Fog or low cloud, representative trail outlook PRIME
57° PRIME SUN 2026-09-13: 0.00 inches of forecast rain, Partly cloudy, representative trail outlook PRIME
55° PRIME MON 2026-09-14: 0.80 inches of forecast rain, Heavy rain, representative trail outlook PRIME
62° CAUTION TUE 2026-09-15: 0.10 inches of forecast rain, Light rain, representative trail outlook CAUTION
59° PRIME WED 2026-09-16: 0.00 inches of forecast rain, Partly cloudy, representative trail outlook PRIME
Modeled rain Forecast rain Above soft threshold (0.5″)
Over the tracked history, Grand Marais 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 Grand Marais

Grand Marais is a mountain bike trail network in Duluth, MN. The soil is sandy and drains fast. Heavy tree cover can slow drying after rain. The terrain averages a 4.2° slope at 1,053 ft and mainly faces SSE. Its gentle slopes drain slowly, so low spots can stay soft after rain.

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.

TerrainModerate

Terrain here drains at a moderate pace. It neither sheds nor holds water strongly.

FAQ

Can you ride Grand Marais right now?

The current estimate for Grand Marais is PRIME: rideable now. Rain returns in ~2 days. 0.1″ of rain, 4d ago.

Is Grand Marais muddy right now?

Loam currently estimates dry conditions (PRIME). Sandy soil usually drains quickly. 0.1″ of rain, 4d ago.

What is the soil and trail surface like at Grand Marais?

Grand Marais 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 Grand Marais take to dry after rain?

Grand Marais usually needs only a few hours to recover after light rain. Its terrain drains at a moderate pace. Heavy tree cover slows drying further.

Can you ride Grand Marais after rain?

Sandy soil drains quickly, though heavier rain can leave soft spots. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

Does Grand Marais get snow in winter?

Yes. At 1,053 ft, Grand Marais 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 Grand Marais?

Grand Marais sits at roughly 1,053 feet, faces mostly SSE, and averages a 4.2° grade with about 81% tree cover. It is quicker to dry where it faces south, and the gentle terrain leaves low spots soft after storms.

When is the best time of year to ride Grand Marais?

Snow can limit riding at Grand Marais in winter, at around 1,053 feet. Spring snowmelt and fall freezes can also affect conditions. Its sunny aspect helps it come back fast after storms. Check the current conditions before planning a ride.

Trail stewards, clubs and bike shops: Put live conditions on your site with a free badge that updates itself. Get the embed code →
Appearance

Loam is a rider app. The badge helps riders find it, so standard embeds are free. No account required. The snippet includes a short text link to the live conditions page; please keep it so riders can open full details. Need several networks? Build a free trail conditions widget. How Loam works and why it is free.

Network profile

Network profile

Soil
Sandydrains fast
Drainage
Moderateeven drying
Tree cover
81%Dense
Elevation
1,053 ft
Average grade
4.2°
Predominant aspect
SSE-facing

Around Grand Marais