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Thunder Mountain Bike Park

Mountain bike trail conditions · Pioneer Valley, MA 42.615° N  72.874° W   1,119 FT Verified

DRY: Rideable

No significant rain in the forecast.

Recent rain
0.3″ of rain, 6d ago
Today
64°Fpartly cloudy
  • Mon 10/12, no measurable rain, daily high 64 degrees Fahrenheit, modeled conditions: STAY OFF
  • Tue 10/13, 0.06 inches of rain, daily high 57 degrees Fahrenheit, modeled conditions: STAY OFF
  • Wed 10/14, no measurable rain, daily high 67 degrees Fahrenheit, modeled conditions: CAUTION then DRY
  • Thu 10/15, no measurable rain, daily high 60 degrees Fahrenheit, modeled conditions: DRY
  • Fri 10/16, 0.34 inches of rain, daily high 65 degrees Fahrenheit, modeled conditions: DRY then CAUTION then STAY OFF then CAUTION then DRY then CAUTION then DRY
  • Sat 10/17, no measurable rain, daily high 50 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/18, no measurable rain, daily high 57 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/19, no measurable rain, daily high 63 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/20, no measurable rain, daily high 64 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/21, no measurable rain, daily high 58 degrees Fahrenheit, modeled conditions: DRY
  • Today, Thu 10/22, no measurable rain, daily high 64 degrees Fahrenheit, modeled conditions: DRY
  • Fri 10/23, no measurable rain, daily high 53 degrees Fahrenheit, modeled conditions: DRY
  • Sat 10/24, no measurable rain, daily high 58 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/25, no measurable rain, daily high 62 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/26, no measurable rain, daily high 64 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
  • Tue 10/27, no measurable rain, daily high 53 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
Updated

Updated Thursday, October 22nd, 2026 at 20:36 UTC. Verdict last changed: Thursday, October 22nd. Official closures and current trail conditions take priority.

Modeled hourly. Closures and local conditions take priority.

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Is Thunder Mountain Bike Park rideable today?

Yes. The live verdict is DRY, rideable now. 0.3″ of rain, 6d ago.

CHANGED
Friday, October 16th at 10pm
Dried back to DRY.
Friday, October 16th at 11am
Dried back to CAUTION.
Friday, October 16th at 8am
Rain moved in. Verdict dropped to STAY OFF.
Over the tracked history, Thunder Mountain Bike Park has been rideable on 8 of the last 10 days, and too wet to ride on 2. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Thunder Mountain Bike Park

Thunder Mountain Bike Park is a mountain bike trail network in Pioneer Valley, MA. 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 1,119 ft, an average terrain slope of 12.5° and a predominant WNW-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. The model uses surveyed water-retention values, not measured trail recovery times.

CanopyDense 86%

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

TerrainSteep

Steeper terrain can encourage runoff. Terrain slope does not measure the trail tread or its drainage features.

FAQ

Can you ride Thunder Mountain Bike Park right now?

The current estimate for Thunder Mountain Bike Park is DRY: rideable. Rideable now. No significant rain in the forecast. 0.3″ of rain, 6d ago.

Is Thunder Mountain Bike Park muddy right now?

Loam currently estimates dry conditions (DRY). Sandy soil usually drains quickly. 0.3″ of rain, 6d ago.

What is the soil and trail surface like at Thunder Mountain Bike Park?

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 Thunder Mountain Bike Park take to dry after rain?

Thunder Mountain Bike Park 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 Thunder Mountain Bike Park 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 Thunder Mountain Bike Park?

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 Thunder Mountain Bike Park?

Terrain data indicates an elevation of about 1,119 ft, an average terrain slope of 12.5° and a predominant WNW-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
Terrain
Steepterrain slope
Tree cover
86%Dense
Elevation
1,119 ft
Average grade
12.5°
Predominant aspect
WNW-facing

Around Thunder Mountain Bike Park

Nearby networks

Deerfield River Trails3 MI Pelham Lake ParkMassachusetts8 MI DAR State Forest11 MI Rocky Mountain Park15 MI Northfield Mountain Recreation Area21 MI

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