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Grand Marais

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

STAY OFF: Active damage risk

Sunday, November 8th at 10am Dries back to Caution.

Recent rain
0.7″ of rain, 4h ago
Today
47°Flight rain
  • Mon 10/26, no measurable rain, daily high 43 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/27, 0.28 inches of rain, daily high 46 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/28, 0.65 inches of rain, daily high 52 degrees Fahrenheit, modeled conditions: DRY then STAY OFF
  • Thu 10/29, no measurable rain, daily high 48 degrees Fahrenheit, modeled conditions: STAY OFF then CAUTION then DRY
  • Fri 10/30, no measurable rain, daily high 46 degrees Fahrenheit, modeled conditions: DRY
  • Sat 10/31, no measurable rain, daily high 49 degrees Fahrenheit, modeled conditions: DRY
  • Sun 11/1, 0.22 inches of rain, daily high 56 degrees Fahrenheit, modeled conditions: DRY then CAUTION then DRY
  • Mon 11/2, 2.19 inches of rain, daily high 55 degrees Fahrenheit, modeled conditions: DRY then CAUTION then STAY OFF
  • Tue 11/3, 0.44 inches of rain, daily high 59 degrees Fahrenheit, modeled conditions: STAY OFF
  • Wed 11/4, 0.90 inches of rain, daily high 55 degrees Fahrenheit, modeled conditions: STAY OFF
  • Today, Thu 11/5, 0.20 inches of rain, daily high 47 degrees Fahrenheit, modeled conditions: STAY OFF
  • Fri 11/6, no measurable rain, daily high 37 degrees Fahrenheit, modeled conditions: STAY OFF
  • Sat 11/7, no measurable rain, daily high 42 degrees Fahrenheit, modeled conditions: STAY OFF
  • Sun 11/8, no measurable rain, daily high 52 degrees Fahrenheit, modeled conditions: STAY OFF then CAUTION
  • Mon 11/9, no measurable rain, daily high 53 degrees Fahrenheit, modeled conditions: CAUTION, forecast preview, beyond the free window
  • Tue 11/10, no measurable rain, daily high 48 degrees Fahrenheit, modeled conditions: CAUTION, forecast preview, beyond the free window
Updated

Updated Thursday, November 5th, 2026 at 12:46 UTC. Verdict last changed: Tuesday, November 3rd. Official closures and current trail conditions take priority.

Modeled hourly. Closures and local conditions take priority.

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Is Grand Marais rideable today?

Not right now. The live verdict is STAY OFF: the ground is wet enough that riding would damage the trail. 0.7″ of rain, 4h ago.

CHANGED
Monday, November 2nd at 1pm
Rain moved in. Verdict dropped to STAY OFF.
Thursday, October 29th at 1pm
Dried back to CAUTION.
Wednesday, October 28th at 7pm
Rain moved in. Verdict dropped to STAY OFF.
Over the tracked history, Grand Marais has been rideable on 6 of the last 10 days, and too wet to ride on 4. 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. Soil data at the sampled location is classified as sandy. Sandy soil can help drainage, while dense tree cover can slow drying by reducing sun and wind exposure. Terrain data indicates an elevation of about 1,053 ft, an average terrain slope of 4.2° and a predominant SSE-facing aspect. Terrain slope does not measure the trail tread or its drainage features. Loam models conditions across the network; individual trails and constructed surfaces can differ from these environmental inputs. Official closures and conditions on the ground take priority.

How we check ourselves

How these factors affect drying

SoilSandy

Sandy soil generally allows water to drain readily. Rainfall, shade and trail construction also affect recovery. Drying behavior is modeled from the soil classification, not measured directly on the trail.

CanopyDense 81%

Dense tree cover can reduce sunlight and wind at ground level, slowing drying. Its effect depends on weather and local openings.

TerrainModerate

Moderate terrain slope is one input to the drying model. Local drainage also depends on soil and trail construction.

FAQ

Can you ride Grand Marais right now?

The current estimate for Grand Marais is STAY OFF: active damage risk. Expected rideable in ~3 days. No significant rain before then. 0.7″ of rain, 4h ago.

Is Grand Marais muddy right now?

Likely. The current estimate is STAY OFF: the ground is wet enough that riding could leave ruts. Sandy soil usually drains quickly. 0.7″ of rain, 4h ago.

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

The soil data at the sampled location is classified as sandy. This describes an environmental input, not a survey of every trail surface.

How long does Grand Marais take to dry after rain?

Grand Marais has no fixed drying time. Rainfall, soil moisture, shade and the weather that follows all matter. Check the current estimate and wait until the trail surface is firm.

Can you ride Grand Marais after rain?

Sandy soil can help drainage, but heavier rain, shade and the trail surface also affect recovery. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

What does a frozen condition mean at Grand Marais?

FROZEN means Loam estimates snow cover or frozen ground. It does not establish that riding is allowed or that every trail is frozen. Check posted winter access rules and watch for soft ground as temperatures rise.

What's the terrain and elevation like at Grand Marais?

Terrain data indicates an elevation of about 1,053 ft, an average terrain slope of 4.2° and a predominant SSE-facing aspect. Terrain slope does not measure the trail tread or its drainage features.

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Network profile

Network profile

Soil
Sandydrainage input · modeled
Terrain
Moderateterrain slope
Tree cover
81%Dense
Elevation
1,053 ft
Average grade
4.2°
Predominant aspect
SSE-facing

Around Grand Marais

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