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Rockville Hills Regional Park

Mountain bike trail conditions · Bay Area, CA 38.243° N  122.140° W   390 FT Verified

PRIME: Rideable now

Fri 25 Drying to Dusty.

Recent rain
No measurable rain in the past week
Today
71°Fpartly cloudy
  • Fri 9/11, no measurable rain, modeled conditions: DUSTY then PRIME
  • Sat 9/12, no measurable rain, modeled conditions: PRIME
  • Sun 9/13, no measurable rain, modeled conditions: PRIME
  • Mon 9/14, no measurable rain, modeled conditions: PRIME then DUSTY
  • Tue 9/15, no measurable rain, modeled conditions: DUSTY
  • Wed 9/16, no measurable rain, modeled conditions: DUSTY
  • Thu 9/17, no measurable rain, modeled conditions: DUSTY
  • Fri 9/18, no measurable rain, modeled conditions: DUSTY
  • Sat 9/19, no measurable rain, modeled conditions: DUSTY
  • Sun 9/20, no measurable rain, modeled conditions: DUSTY
  • Today, Mon 9/21, no measurable rain, modeled conditions: DUSTY then PRIME
  • Tue 9/22, no measurable rain, modeled conditions: PRIME
  • Wed 9/23, no measurable rain, modeled conditions: PRIME
  • Thu 9/24, no measurable rain, modeled conditions: PRIME
  • Fri 9/25, no measurable rain, modeled conditions: PRIME then DUSTY, forecast preview, beyond the free window
  • Sat 9/26, no measurable rain, modeled conditions: DUSTY then PRIME, forecast preview, beyond the free window

Updated Sep 21, 2026, 14:48 UTC. Modeled hourly. Verdict last changed: Sep 21. Official closures and current trail conditions take priority.

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Is Rockville Hills Regional Park rideable today?

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

CHANGED
Mon 2111am
Rain moved in. Verdict dropped to PRIME.
Tue 1512am
Dried back to DUSTY.
Sat 124am
Rain moved in. Verdict dropped to PRIME.
Over the tracked history, Rockville Hills Regional Park has been rideable on 10 of the last 10 days (very dry and dusty on 6 of them). Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Rockville Hills Regional Park

Rockville Hills Regional Park is a mountain bike trail network in Bay Area, CA. The soil is loam and drains well. The terrain averages a 2.2° slope at 390 ft and mainly faces ESE. 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.

CanopyPartial 28%

A mix of sun and shade. Conditions vary across the network, with open sections drying faster than covered ones.

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 Rockville Hills Regional Park right now?

The current estimate for Rockville Hills Regional Park is PRIME: rideable now. No significant rain in the forecast. No measurable rain in the past week.

Is Rockville Hills Regional Park muddy right now?

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

What is the soil and trail surface like at Rockville Hills Regional Park?

Rockville Hills Regional Park 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 Rockville Hills Regional Park take to dry after rain?

Rockville Hills Regional Park usually needs about a day or two to dry after meaningful rain. Its terrain holds water in low spots, which slows it.

Can you ride Rockville Hills Regional Park 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 Rockville Hills Regional Park get snow in winter?

Rarely. Rockville Hills Regional Park sits low and mild enough (around 390 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 Rockville Hills Regional Park?

Rockville Hills Regional Park sits at roughly 390 feet, faces mostly ESE, and averages a 2.2° grade with about 28% tree cover. It is exposed to morning sun, and the gentle terrain leaves low spots soft after storms.

When is the best time of year to ride Rockville Hills Regional Park?

Snow rarely affects Rockville Hills Regional Park. Check recent rain and allow time for the ground to dry. The live verdict above reflects today.

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Network profile

Network profile

Soil
Loamdrains well
Drainage
Holds waterdries slowly
Tree cover
28%Partial
Elevation
390 ft
Average grade
2.2°
Predominant aspect
ESE-facing

Around Rockville Hills Regional Park

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