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Sun Mountain

Mountain bike trail conditions · Washington 48.466° N  120.270° W   2,740 FT Verified

DRY: Rideable

Tuesday, October 27th Conditions turn Caution.

Recent rain
No measurable rain in the past week
Today
61°Fpartly cloudy
  • Mon 10/12, no measurable rain, daily high 56 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/13, no measurable rain, daily high 58 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/14, no measurable rain, daily high 66 degrees Fahrenheit, modeled conditions: DRY
  • Thu 10/15, no measurable rain, daily high 63 degrees Fahrenheit, modeled conditions: DRY
  • Fri 10/16, no measurable rain, daily high 63 degrees Fahrenheit, modeled conditions: DRY
  • Sat 10/17, no measurable rain, daily high 59 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 58 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/20, no measurable rain, daily high 61 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/21, no measurable rain, daily high 61 degrees Fahrenheit, modeled conditions: DRY
  • Today, Thu 10/22, no measurable rain, daily high 61 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 49 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/25, no measurable rain, daily high 51 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/26, no measurable rain, daily high 56 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
  • Tue 10/27, no measurable rain, daily high 56 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
Updated

Updated Thursday, October 22nd, 2026 at 20:09 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 Sun Mountain rideable today?

Yes. The live verdict is DRY, rideable now. No measurable rain in the past week.

Over the tracked history, Sun Mountain has been rideable on 10 of the last 10 days. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Sun Mountain

Sun Mountain is a mountain bike trail network in Washington. Soil data at the sampled location is classified as gravelly sandy. Terrain data indicates an elevation of about 2,740 ft, an average terrain slope of 10.2° and a predominant NE-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

SoilGravelly sandy

The soil data includes about 35% rock fragments. The model uses this to adjust drainage; it does not measure how quickly every trail section dries. Drying behavior is modeled from the soil classification, not measured directly on the trail.

CanopyPartial 47%

Partial tree cover suggests a mix of sun and shade. Local exposure and surface conditions can vary across the network.

TerrainSteep

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

FAQ

Can you ride Sun Mountain right now?

The current estimate for Sun Mountain is DRY: rideable. Rideable now. No significant rain in the forecast. No measurable rain in the past week.

Is Sun Mountain muddy right now?

Loam currently estimates dry conditions (DRY). Sandy soil usually drains quickly. No measurable rain in the past week.

What is the soil and trail surface like at Sun Mountain?

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

How long does Sun Mountain take to dry after rain?

Sun Mountain 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 Sun Mountain 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 Sun Mountain?

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 Sun Mountain?

Terrain data indicates an elevation of about 2,740 ft, an average terrain slope of 10.2° and a predominant NE-facing aspect. Terrain slope does not measure the trail tread or its drainage features.

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Network profile

Network profile

Soil
Gravelly sandydrainage input · modeled
Terrain
Steepterrain slope
Tree cover
47%Partial
Elevation
2,740 ft
Average grade
10.2°
Predominant aspect
NE-facing

Around Sun Mountain

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