Mount Si peak
Mount Si rises to 4,167 ft in Cascade-Range within the Cascade Range range.
Standing at an elevation of 4,167 feet (1,270 meters), it offers breathtaking panoramic views of the surrounding Cascade Mountains and the Snoqualmie Valley. The mountain is situated within the Mount Si Natural Resources Conservation Area, which encompasses approximately 4,167 acres (1,686 hectares) of diverse ecosystems.
During the winter season, Mount Si receives a significant amount of snowfall. The snowpack range can vary depending on weather conditions, but it generally accumulates from late fall to early spring, providing opportunities for winter sports enthusiasts such as snowshoeing and backcountry skiing. It is advisable to check current snow and weather conditions before planning a winter ascent.
Several creeks and rivers benefit from the runoff generated by Mount Si. The most notable among them is the South Fork Snoqualmie River, which originates from the melting snow and glaciers on the mountain. This river serves as an important water source for nearby communities and supports a variety of aquatic life.
The name "Mount Si" has an interesting history. It is believed to have been derived from the local Snoqualmie tribe's name for the mountain, "Tah-a-ko-kwoy," which means "small mountain." The current name "Mount Si" was given by railroad surveyor, Josiah Merritt, in the late 1800s. The mountain holds significance in local lore and legends, including stories of mythical creatures and supernatural phenomena associated with its unique formation.
In conclusion, Mount Si is a captivating mountain within the Pacific Ranges mountain range. Its impressive elevation, diverse ecosystems, significant snowpack during winter, and contribution to the surrounding creeks and rivers make it a popular destination for outdoor enthusiasts. The mountain's rich history, indigenous name, and intriguing legends add to its allure, making it a must-visit location for those seeking adventure and natural beauty in the Pacific Northwest.
For trail conditions and access, search Wikipedia or the local land manager's site. Browse other peaks in the Cascade-Range range.
Snowpack near Mount Si
Snow water equivalent and snowpack depth at SNOTEL stations near the peak. Best proxy for what's currently sitting on the summit.
| SNOTEL station | Snowpack | View |
|---|---|---|
| White Chuck Mountain | 20 in | → |
| Crystal - Campbell Basin | 1 in | → |
| Crystal Base | 0 in | → |
| White Pass Upper | 5 in | → |
| Alpine Meadows | 1 in | → |
| Stevens Pass - Grace Lakes | 0 in | → |
| Skookum Creek | 1 in | → |
| Cougar Mountain | 1 in | → |
| Skookum Creek | 1 in | → |
| Alpental Mid-Mountain | 9 in | → |
| Yline | 1 in | → |
| Meadows Pass | 1 in | → |
Streamflow near Mount Si
USGS streamgauges in the basin drained by this peak. Spring snowmelt from the summit feeds these flows.
| Gauge | Streamflow | View |
|---|---|---|
| Sauk River At Darrington | 5,220 cfs | → |
| Nf Stillaguamish River Near Arlington | 5,720 cfs | → |
| Mercer Creek Near Bellevue | 12 cfs | → |
| Nf Snoqualmie River Near Snoqualmie Falls | 994 cfs | → |
| Sauk River Ab Whitechuck River Near Darrington | 2,140 cfs | → |
| Issaquah Creek Near Mouth Near Issaquah | 134 cfs | → |
| Salix Creek At S Cascade Gl Near Marblemount | 0 cfs | → |
Plan around incoming weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column -- snow at this elevation typically lags the radar signature by a few hours.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
What's around Mount Si
Ski areas, river runs, fishing spots, campgrounds, parks, reservoirs, and boat launches within driving distance of Mount Si.
Ski areas
- Callaghan Country
- Mt. Hood Skibowl
- Mt. Baker Ski Area
- Leavenworth Ski Hill
- Manning Park Resort
- Logan Lake Lodge Ski Trails
River runs
- Confluence With Taylor River To Confluence With North Fork Snoqualmie River
- Wagner Bridge To Confluence With Middle Fork Snoqualmie River
- Snoqualmie Falls To Plum's Landing
- Quartz Road To Confluence With Middle Fork Snoqualmie River
- Alpine Lakes Wilderness Boundary To Quartz Creek Road
- Outlet Of Snoqualmie Lake To Alpine Lakes Wilderness Boundary
Get Mount Si on your phone.
Save this peak as a favorite and get push alerts when storms move in, fresh snow falls upstream, or NWS issues a weather warning. Free, account optional.
Scan to install Look for this on your home screen