LoamLoam App StoreGoogle Play

Rocky Peak / Simi Valley

Mountain bike trail conditions · Orange County & Inland Empire, CA 34.277° N  118.652° W   1,572 FT Verified

DUSTY: Rideable, very dry

Wednesday, October 21st Conditions turn Caution.

Recent rain
No measurable rain in the past week
Today
88°Fpartly cloudy
  • Wed 10/7, no measurable rain, daily high 96 degrees Fahrenheit, modeled conditions: DUSTY
  • Thu 10/8, no measurable rain, daily high 93 degrees Fahrenheit, modeled conditions: DUSTY
  • Fri 10/9, no measurable rain, daily high 89 degrees Fahrenheit, modeled conditions: DUSTY
  • Sat 10/10, no measurable rain, daily high 82 degrees Fahrenheit, modeled conditions: DUSTY
  • Sun 10/11, no measurable rain, daily high 73 degrees Fahrenheit, modeled conditions: DUSTY then DRY
  • Mon 10/12, no measurable rain, daily high 64 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/13, no measurable rain, daily high 73 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/14, no measurable rain, daily high 82 degrees Fahrenheit, modeled conditions: DUSTY
  • Thu 10/15, no measurable rain, daily high 86 degrees Fahrenheit, modeled conditions: DUSTY
  • Fri 10/16, no measurable rain, daily high 89 degrees Fahrenheit, modeled conditions: DUSTY
  • Today, Sat 10/17, no measurable rain, daily high 88 degrees Fahrenheit, modeled conditions: DUSTY
  • Sun 10/18, no measurable rain, daily high 85 degrees Fahrenheit, modeled conditions: DUSTY
  • Mon 10/19, no measurable rain, daily high 81 degrees Fahrenheit, modeled conditions: DUSTY
  • Tue 10/20, no measurable rain, daily high 76 degrees Fahrenheit, modeled conditions: DUSTY
  • Wed 10/21, 1.12 inches of rain, daily high 61 degrees Fahrenheit, modeled conditions: DUSTY then CAUTION then STAY OFF, forecast preview, beyond the free window
  • Thu 10/22, 0.05 inches of rain, daily high 65 degrees Fahrenheit, modeled conditions: STAY OFF then CAUTION then DRY, forecast preview, beyond the free window
Updated

Updated Saturday, October 17th, 2026 at 18:51 UTC. Verdict last changed: Wednesday, October 14th. Official closures and current trail conditions take priority.

Modeled hourly. Closures and local conditions take priority.

Watch Rocky Peak / Simi Valley for free

Download Loam for free and get trail-condition alerts. No account needed.

After installing, search for Rocky Peak / Simi Valley and turn on alerts.

Already have Loam? Open this trail

Download on the App StoreGet it on Google Play

Is Rocky Peak / Simi Valley rideable today?

Yes. The live verdict is DUSTY: rideable, but very dry and loose over hardpack. No measurable rain in the past week.

CHANGED
Wednesday, October 14th at 12am
Dried back to DUSTY.
Sunday, October 11th at 5pm
Rain moved in. Verdict dropped to DRY.
Over the tracked history, Rocky Peak / Simi Valley has been rideable on 10 of the last 10 days (very dry and dusty on 8 of them). Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Rocky Peak / Simi Valley

Rocky Peak / Simi Valley is a mountain bike trail network in Orange County & Inland Empire, CA. Soil data at the sampled location is classified as loam. Open tree cover can allow more sun and wind exposure, helping drying. Terrain data indicates an elevation of about 1,572 ft, an average terrain slope of 13.8° and a predominant W-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

SoilLoam

Loam combines drainage with water retention. Soil type alone does not establish how long this network takes to dry. Drying behavior is modeled from the soil classification, not measured directly on the trail.

CanopyOpen 0%

Open tree cover can allow more sunlight and wind to reach the ground. Terrain, weather and trail construction also affect drying.

TerrainSteep

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

FAQ

Can you ride Rocky Peak / Simi Valley right now?

The current estimate for Rocky Peak / Simi Valley is DUSTY: rideable, very dry. Rideable, but very dry. Expect dust. Rain returns in ~4 days. No measurable rain in the past week.

Is Rocky Peak / Simi Valley muddy right now?

Loam currently estimates dry conditions (DUSTY). No measurable rain in the past week.

What is the soil and trail surface like at Rocky Peak / Simi Valley?

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

How long does Rocky Peak / Simi Valley take to dry after rain?

Rocky Peak / Simi Valley 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 Rocky Peak / Simi Valley 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.

What does a frozen condition mean at Rocky Peak / Simi Valley?

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 Rocky Peak / Simi Valley?

Terrain data indicates an elevation of about 1,572 ft, an average terrain slope of 13.8° and a predominant W-facing aspect. Terrain slope does not measure the trail tread or its drainage features.

Trail stewards, clubs and bike shops: Put live conditions on your site with a free badge that updates itself. Get the embed code →
Appearance

Loam is a rider app. The badge helps riders find it, so standard embeds are free. No account required. The snippet includes a short text link to the live conditions page; please keep it so riders can open full details. Need several networks? Build a free trail conditions widget. How Loam works and why it is free.

Network profile

Network profile

Soil
Loamdrainage input · modeled
Terrain
Steepterrain slope
Tree cover
0%Open
Elevation
1,572 ft
Average grade
13.8°
Predominant aspect
W-facing

Around Rocky Peak / Simi Valley

Nearby networks

El Scorpion / Ahmanson Ranch6 MI Topanga State Park13 MI Malibu Creek State Park14 MI Fullerton Loop50 MI Bonelli Regional Park51 MI

Every Orange County & Inland Empire network →