Grouse Mountain
BC · 4,100 ft summit · YVR
NWS Bias
2025–26 Season Snapshot
Storms This Season
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storms tracked
Season Snowfall
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season total
Best Storm
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no storms yet
Current Snowpack
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SNOTEL ground truth
NWS Forecast Accuracy
Accuracy grade pending, and it stays that way on purpose. We show the raw NWS forecast for Grouse Mountain and do not grade or correct it. Six winters of NWS-against-SNOTEL checking found forecast accuracy here turns on an unresolved snow-measurement question (settled snow depth vs. fresh snowfall), not a fixed per-mountain bias anyone can honestly correct. So we show the number NWS publishes and tell you that is what it is.
Storm History — 2025–26 Season
No storms recorded this season yet.
Road & Access
Sea-to-Sky Highway (Hwy 99)
RestrictedCONSTRUCTION (Highway 99 · BOTH): Tree pruning from Highway 99, In Whistler, At Lorimer Road and Soo Valley Road. Starting Fri Oct 9 until Mon Nov 30. Single lane alternating traffic. Shoulder closed. Last update: October 15th, 2026 at 12:37pm PDT. Tree trimming for BC Hydro power lines. | CONSTRUCTION (Larsen Creek Bridge · BOTH): Utility work from Highway 99, In West Vancouver and 746m North of Horseshoe Bay Junction to In Whistler and At Alpha Lake Road. Starting Mon Oct 19 until Fri Oct 23. From 7:00 AM to 3:30 PM PDT, weekdays. Last update: October 19th, 2026 at 11:27am PDT. Watch for a slow moving vehicle for drainage maintenance. | CONSTRUCTION (Highway 99 · BOTH): Road maintenance from Highway 99, At Nordic Drive and 500m West of Nordic Drive to In Whistler. Starting Tue Oct 13 until Thu Dec 31. From 6:00 AM to 7:00 PM PDT, every day. Single lane alternating traffic. Last update: October 15th, 2026 at 12:56pm PDT. Fuel management and reduction for community wildfire risk reduction.
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