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Mercer County Park

Mountain bike trail conditions · Central New Jersey, NJ 40.269° N  74.644° W   62 FT Verified

PRIME: Rideable now

No significant rain in the forecast.

Recent rain
0.1″ of rain, 6d ago
Today
81°Fpartly cloudy
Last 10 daysoldest to newest

Updated Aug 26, 2026, 19:04 UTC. Modeled hourly. Official closures and current trail conditions take priority.

Is Mercer County Park rideable today?

Yes. The live verdict is PRIME, rideable now. 0.1″ of rain, 6d ago.

Trail outlook

0.1″
FORECAST
STAY OFF 7d 2026-08-19: 0.00 inches of rain, representative trail outlook STAY OFF
STAY OFF 6d 2026-08-20: 0.10 inches of rain, representative trail outlook STAY OFF
PRIME 5d 2026-08-21: 0.00 inches of rain, representative trail outlook PRIME
PRIME 4d 2026-08-22: 0.00 inches of rain, representative trail outlook PRIME
PRIME 3d 2026-08-23: 0.00 inches of rain, representative trail outlook PRIME
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
81° PRIME Today 2026-08-26: 0.00 inches of rain, Partly cloudy, representative trail outlook PRIME
84° PRIME THU 2026-08-27: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
83° PRIME FRI 2026-08-28: 0.00 inches of forecast rain, Overcast, representative trail outlook PRIME
83° PRIME SAT 2026-08-29: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
90° PRIME SUN 2026-08-30: 0.00 inches of forecast rain, Cloudy, representative trail outlook PRIME
Measured rain Forecast rain Above soft threshold (0.5″)
Over the tracked history, Mercer County Park has been rideable on 6 of the last 10 days, and too wet to ride on 4. Daily trail markers are representative daytime outlooks. Weather is one input. The rideability verdict also accounts for soil, terrain, canopy, and drying time.

Why Mercer County Park dries this way

Mercer County Park is a mountain bike network in the Central New Jersey region of NJ, riding on not surveyed soil that middle estimate 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. The terrain here is nearly flat (a 0.1° average grade at 62 ft) and lets water sit, so the flat stretches are the last to firm up, while the NNW-facing aspect keeps the dirt shaded for much of the day, so moisture lingers after rain and snow is slow to clear.

Network profile

Soil
Not surveyedmiddle estimate · modeled
Drainage
Holds waterdries slowly
Tree cover
76%Dense
Elevation
62 ft
Average grade
0.1°
Predominant aspect
NNW-facing
How these factors affect drying

SoilNot surveyed

Soil survey data does not reach this spot, so the drying model assumes middle-of-the-road ground rather than guessing at a soil type. Everything else in this forecast is measured, but expect the drying estimate here to be less precise than at networks with surveyed soil.

CanopyDense 76%

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 Mercer County Park

FAQ

Can you ride Mercer County Park right now?

As of the latest update, Mercer County Park is Rideable now (PRIME). No significant rain in the forecast. 0.1″ of rain, 6d ago.

Is Mercer County Park muddy right now?

No. The current verdict is PRIME, which means the model reads the surface as dry. 0.1″ of rain, 6d ago.

What is the soil and trail surface like at Mercer County Park?

Mercer County Park sits on not surveyed soil that middle estimate. Soil survey data does not reach this spot, so the drying model assumes middle-of-the-road ground rather than guessing at a soil type. Everything else in this forecast is measured, but expect the drying estimate here to be less precise than at networks with surveyed soil.

How long does Mercer County Park take to dry after rain?

Mercer County Park usually needs about a day or two to dry after meaningful rain. Its terrain holds water in low spots, which slows it. Heavy tree cover slows drying further.

Can you ride Mercer County Park 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 Mercer County Park get snow in winter?

Rarely. Mercer County Park sits low and mild enough (around 62 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 Mercer County Park?

Mercer County Park sits at roughly 62 feet, faces mostly NNW, and averages a 0.1° grade with about 76% tree cover. That makes it a shady network that holds moisture longer than sunnier neighbors, 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 Mercer County Park?

There is no real off-season at Mercer County Park: snow rarely interferes, so good days come down to rain and how fast the dirt dries. Its shady aspect means it needs longer after storms than sunnier networks nearby. The live verdict above reflects today.

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