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Island Lake Recreation Area

Mountain bike trail conditions · Detroit & Ann Arbor, MI 42.505° N  83.733° W   906 FT

PRIME: Rideable now

No significant rain in the forecast.

Recent rain
No measurable rain in the past week
Today
79°Fcloudy
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
PRIME 7d 2026-08-13: 0.00 inches of rain, representative trail outlook PRIME
PRIME 6d 2026-08-14: 0.00 inches of rain, representative trail outlook PRIME
PRIME 5d 2026-08-15: 0.00 inches of rain, representative trail outlook PRIME
PRIME 4d 2026-08-16: 0.00 inches of rain, representative trail outlook PRIME
PRIME 3d 2026-08-17: 0.00 inches of rain, representative trail outlook PRIME
PRIME 2d 2026-08-18: 0.00 inches of rain, representative trail outlook PRIME
PRIME 1d 2026-08-19: 0.00 inches of rain, representative trail outlook PRIME
79° PRIME Today 2026-08-20: 0.00 inches of rain, Cloudy, representative trail outlook PRIME
82° PRIME FRI 2026-08-21: 0.00 inches of forecast rain, Partly cloudy, representative trail outlook PRIME
79° 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, Partly cloudy, representative trail outlook PRIME
79° 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, Island Lake Recreation Area has been rideable on 10 of the last 10 days. 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 Island Lake Recreation Area dries this way

Terrain & soil

Island Lake Recreation Area is a mountain bike network in the Detroit & Ann Arbor region of MI, riding on sandy soil that drains fast 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. What really sets the timing here is how quickly that ground gives back a firm, dry surface, not what the day’s forecast says. At 906 ft, Island Lake Recreation Area rides SE-facing ground that catches morning sun, so the surface firms up earlier in the day; the nearly flat grade, around 1.2° on average, lets water sit, so the flat stretches are the last to firm up.

Network profile

Soil
Sandydrains fast
Drainage
Holds waterdries slowly
Tree cover
79%Dense
Elevation
906 ft
Average grade
1.2°
Predominant aspect
SE-facing
How these factors affect drying

SoilSandy

Sandy, coarse soil sheds water fast. These trails are among the quickest to recover after rain.

CanopyDense 79%

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 Island Lake Recreation Area

FAQ

Common questions
Can you ride Island Lake Recreation Area right now?

As of the latest update, Island Lake Recreation Area is Rideable now (PRIME). No significant rain in the forecast. No measurable rain in the past week.

What is the soil and trail surface like at Island Lake Recreation Area?

Island Lake Recreation Area 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 Island Lake Recreation Area take to dry after rain?

Island Lake Recreation Area usually needs only a few hours to recover after light rain. Its terrain holds water in low spots, which slows it. Heavy tree cover slows drying further.

Does Island Lake Recreation Area get snow in winter?

Rarely. Island Lake Recreation Area sits low and mild enough (around 906 ft) that snow seldom affects riding; conditions are driven by rain and drying. Loam still flags FROZEN on the rare freeze.

What's the terrain and elevation like at Island Lake Recreation Area?

Island Lake Recreation Area sits at roughly 906 feet, faces mostly SE, and averages a 1.2° grade with about 79% tree cover. That makes it a morning-sun network that firms up early in the day, 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 Island Lake Recreation Area?

There is no real off-season at Island Lake Recreation Area: snow rarely interferes, so good days come down to rain and how fast the dirt dries. The live verdict above reflects today.