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Summit County Mountain Bike Trail Conditions

Summit County packs Breckenridge, Frisco, and Keystone into one high-country playground. The Colorado Trail, Peaks Trail, and Frisco Peninsula deliver fast forested singletrack between 9,000 and 12,000 feet, which means a short, intense summer season. Snow lingers here long after the town trails elsewhere have dried out.

536 featured mountain bike trails elevation 8,645–14,252 ft

Is it muddy in Summit County right now?

Right now about 19 of 522 featured Summit County trails are riding well. Conditions change daily with rain and snowmelt, so the list below shows the live read for each trail, and the chart shows which day ahead is your best bet.

🚲 Riding gravel? See gravel & dirt road conditions near Summit County →

Summit County conditions at a glancesnapshot · Aug 14

Live conditions map
© OpenStreetMap
Open the live map
Riding right now
19 of 522 trails riding well
Tacky / good 16Dry 3Soft — ride gently 477Muddy — stay off 25Likely snowy 1
Air quality
AQI 66 · Moderate
EPA AirNow (observed) + CAMS forecast. Informational.
Next 9 days
Trails riding well each day · blue dot = rain
16Today0Sat0Sun0Mon5Tue14Wed8Thu0Fri0Sat
Most trails are wet right now and stay marginal through the week. Look for a rocky or sandy trail that drains fast.
Temperature this week
Lower trails8,645–11,115 ft
36°typical 44°–67°F77°
High country11,158–13,599 ft
28°typical 37°–61°F69°
20°40°60°80°
5-day forecast
Today69°
Sat70°
Sun71°
Mon71°
Tue76°
Daytime high across Summit County, rain marked. Real forecast, refreshed every morning (elevation detail above).
Trail soil & drainage
Mixed 48%Loam 51%Clay 1%
Mostly mixed, which varies from trail to trail.
See the live map & forecastEvery featured trail · best bets today · 10-day outlook
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Best time of year to ride Summit County

Typical riding conditions by month, blending heat and trail conditions from 10 years of local climate data — so you can plan a trip for the right window.

The best time to ride Summit County is June through September, when daytime highs sit in the 64–71°F range and the dirt is typically dry. The high country is usually snowbound January through May and October through December. Planning a trip? Those are your safest bets — and for this week, the live forecast below shows exactly which days are riding well (right now 19 of 522 featured trails are good to go).

January: Snowbound, typical high 27°F (ride score 26/100)J27°February: Snowbound, typical high 29°F (ride score 26/100)F29°March: Snowbound, typical high 36°F (ride score 26/100)M36°April: Snowbound, typical high 42°F (ride score 26/100)A42°May: Snowbound, typical high 51°F (ride score 26/100)M51°June: Prime, typical high 64°F (ride score 100/100)J64°July: Prime, typical high 71°F (ride score 93/100)J71°August: Prime, typical high 70°F (ride score 95/100)A70°September: Prime, typical high 65°F (ride score 100/100)S65°October: Snowbound, typical high 50°F (ride score 26/100)O50°November: Snowbound, typical high 37°F (ride score 26/100)N37°December: Snowbound, typical high 28°F (ride score 26/100)D28°
PrimeSnowbound

Bar height = our ride-friendliness score for a typical year; colour = the main limiting factor; the number under each month is the average daytime high. Based on 2014–2023 climate normals (ERA5). This year's live conditions are below.

Trail networks in Summit County

Named riding areas in Summit County, each with its own live conditions and the trails inside it.

Best Summit County mountain bike trails to ride right now

Every featured singletrack trail, sorted by today's real conditions, best first. Refreshed every morning. Riding gravel instead? See gravel and dirt road conditions near Summit County.

Summit County mountain biking FAQ

What are the best mountain bike trails to ride near Summit County right now?

Today the trails riding best near Summit County are Sluice Box Bridge, Upper-Lower Salt Lick Bridge and Warrior’s Mark. The full list below is sorted by today's real conditions, best first, and refreshes every morning, so the top of the list is always your best bet right now. See live conditions →

When will the mountain bike trails in Summit County dry out?

It depends on recent rain and each trail's soil. The 10-day outlook on this page shows how many Summit County trails are expected to be riding well each day, with rain markers, so you can pick the right day instead of guessing. See the 10-day outlook →

Is it too muddy to ride in Summit County after rain?

Right now 502 of 522 featured Summit County trails are reading soft or too muddy to ride. Summit County is mostly loam soil, which drains at a moderate pace, so after a storm some trails firm up within a day while others stay greasy. Riding wet, soft dirt damages trails and leaves ruts, so check the live mud reading on each trail before you head out. Check the live mud reading →

How many mountain bike trails are in Summit County?

Summit County has 536 featured mountain bike trails tracked here for conditions, with more searchable on the live map.

How high are the Summit County trails?

Summit County trails run from about 8,645–14,252 ft. Higher trails hold snow later into spring and dry out later than the lower ones, so conditions can vary a lot across the same area on the same day.

When do the high trails near Summit County melt out?

The high trails near Summit County have largely melted out for now. From late winter through spring this page tracks snow coverage and the estimated melt-out date for each high trail, so you can catch them the moment they open. See the melt-out outlook →

When is the best time to ride mountain bikes in Summit County?

The best time to ride Summit County is June through September, when daytime highs are in the 64–71°F range and the trails are typically dry. The high country is usually snowbound January through May and October through December. This is based on 10 years of local climate data; check the live conditions on this page for how the trails are actually riding today.

What months can you mountain bike in Summit County?

The main riding season in Summit County is roughly June through September; the high trails are usually snowbound January through May and October through December and melt out through spring. This page tracks snow coverage and melt-out daily so you can time the high country.

Local resources near Summit County

The people who build and protect these trails, plus where to get local beta. If you ride here, support your local trail org.

Trail stewardship

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