Is #15A Old Pen dry and rideable today? Here is the current mud, dust, and snow read, the 10-day forecast, and the best time to ride, refreshed every morning.
dry 28d; NW-facing loam; rain Sat → softening
#15A Old Pen is a mountain bike trail in the Boise area of Idaho. This page tracks its current riding conditions, whether it's hero dirt, dusty, soft, or too muddy to ride, alongside the ten-day outlook and the best time of day to ride. We build the read from real weather, soil, terrain, and snowpack data and refresh it every morning, so you can decide what to ride before you load up the bike.
The best window to ride #15A Old Pen today is 6 AM–2 PM, when it is coolest and the dirt is at its best. Watch out later in the day: hot & exposed 5PM–6PM — little shade. We read this from real hourly weather at trail elevation, heat, tree shade, and wind, and refresh it every morning.
Conditions change daily. The live reading at the top of this page shows whether #15A Old Pen is hero dirt, tacky, soft, or too muddy to ride today, refreshed every morning from local weather, soil, and terrain data.
Today, the best window to ride #15A Old Pen is the cooler 6 AM–2 PM stretch. It shifts with heat, shade, and how wet the dirt is. Open the live forecast to see the recommended time of day to ride #15A Old Pen today and across the next ten days. Open the live forecast →
This page carries the live weather that drives #15A Old Pen's trail conditions, temperature, rain, and snow at trail elevation, today through the next ten days. Because #15A Old Pen tops out around 3,084 ft, its weather runs cooler and wetter than the nearby town, which is why we read conditions at the trail rather than the valley. See the 10-day weather →
It comes down to recent moisture. #15A Old Pen rides as hero dirt when the soil holds a little moisture and turns dusty and loose once it dries out or sees heavy traffic. The live reading at the top of this page shows today's dirt quality, hero dirt, tacky, dusty, or soft, refreshed every morning.
#15A Old Pen is about 0.6 mi, sitting between 2,782–3,084 ft. It is a mountain bike trail in the Boise area of Idaho. See the elevation profile →
#15A Old Pen is a mountain bike trail in the Boise area of Idaho, between about 2,782–3,084 ft. Open the live map for the trailhead location, a GPX download, and today's conditions. Open the live map →
Yes. Use the Download GPX button on this page to save a GPX track of #15A Old Pen, built from real OpenStreetMap trail geometry and ready for your GPS unit, bike computer, or phone. The live map also has the trailhead and today's conditions. Download GPX →
#15A Old Pen is mostly loam soil, which drains at a moderate pace. That is a big part of why the live mud reading reacts the way it does after rain, and why some nearby trails dry out faster than others.
#15A Old Pen tops out around 3,084 ft. Higher Idaho trails hold snow later into spring, so this page tracks snow coverage and the estimated melt-out alongside the dry-dirt read. Check the current reading and the 10-day outlook before you head up. See the 10-day outlook →