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John Bryan State Park Mountain Bike Trails

Mountain bike trail conditions · Dayton, OH 39.793° N  83.855° W   1,073 FT Verified

PRIME: Rideable now

Mon 3am Conditions turn Stay off.

Recent rain
0.1″ of rain, 4d ago
Today
86°Fheavy rain
  • Thu 9/10, 0.09 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Fri 9/11, no measurable rain, modeled conditions: PRIME
  • Sat 9/12, 0.10 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Sun 9/13, no measurable rain, modeled conditions: PRIME
  • Mon 9/14, no measurable rain, modeled conditions: PRIME
  • Tue 9/15, no measurable rain, modeled conditions: PRIME
  • Wed 9/16, 0.14 inches of rain, modeled conditions: PRIME then STAY OFF then CAUTION
  • Thu 9/17, no measurable rain, modeled conditions: CAUTION then PRIME
  • Fri 9/18, no measurable rain, modeled conditions: PRIME
  • Sat 9/19, no measurable rain, modeled conditions: PRIME
  • Today, Sun 9/20, 0.57 inches of rain, modeled conditions: PRIME then STAY OFF
  • Mon 9/21, no measurable rain, modeled conditions: STAY OFF
  • Tue 9/22, no measurable rain, modeled conditions: STAY OFF then CAUTION
  • Wed 9/23, 0.06 inches of rain, modeled conditions: CAUTION
  • Thu 9/24, no measurable rain, modeled conditions: CAUTION, forecast preview, beyond the free window
  • Fri 9/25, no measurable rain, modeled conditions: CAUTION, forecast preview, beyond the free window

Updated Sep 20, 2026, 14:18 UTC. Modeled hourly. Unchanged for 10+ days. Official closures and current trail conditions take priority.

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Is John Bryan State Park Mountain Bike Trails rideable today?

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

CHANGED
Thu 179am
Dried back to PRIME.
Thu 173am
Dried back to CAUTION.
Thu 171am
Rain moved in. Verdict dropped to STAY OFF.
Over the tracked history, John Bryan State Park Mountain Bike Trails has been rideable on 10 of the last 10 days. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at John Bryan State Park Mountain Bike Trails

John Bryan State Park Mountain Bike Trails is a mountain bike trail network in Dayton, OH. The soil is loam and drains well. Heavy tree cover can slow drying after rain. The terrain averages a 2.5° slope at 1,073 ft and mainly faces S. Its gentle slopes drain slowly, so low spots can stay soft after rain.

How we check ourselves

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 86%

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.

FAQ

Can you ride John Bryan State Park Mountain Bike Trails right now?

The current estimate for John Bryan State Park Mountain Bike Trails is PRIME: rideable now. Good window for the next ~13 hours. 0.1″ of rain, 4d ago.

Is John Bryan State Park Mountain Bike Trails muddy right now?

Loam currently estimates dry conditions (PRIME). 0.1″ of rain, 4d ago.

What is the soil and trail surface like at John Bryan State Park Mountain Bike Trails?

John Bryan State Park Mountain Bike Trails 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 John Bryan State Park Mountain Bike Trails take to dry after rain?

John Bryan State Park Mountain Bike Trails 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 John Bryan State Park Mountain Bike Trails 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 John Bryan State Park Mountain Bike Trails get snow in winter?

Rarely. John Bryan State Park Mountain Bike Trails sits low and mild enough (around 1,073 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 John Bryan State Park Mountain Bike Trails?

John Bryan State Park Mountain Bike Trails sits at roughly 1,073 feet, faces mostly S, and averages a 2.5° grade with about 86% 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 John Bryan State Park Mountain Bike Trails?

Snow rarely affects John Bryan State Park Mountain Bike Trails. Check recent rain and allow time for the ground to dry. Its sunny aspect helps it come back fast after storms. The live verdict above reflects today.

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Network profile

Network profile

Soil
Loamdrains well
Drainage
Holds waterdries slowly
Tree cover
86%Dense
Elevation
1,073 ft
Average grade
2.5°
Predominant aspect
S-facing

Around John Bryan State Park Mountain Bike Trails

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