Sinister Peak Mountain Peaks

Last Updated: February 1, 2026

Sinister Peak is a prominent mountain located in the Pacific Ranges of the North Cascades in Washington, United States.


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15-Day Weather Outlook


Summary

       

Hourly Weather Forecast

Regional Streamflow Levels

6,460

Cubic Feet Per Second
SKAGIT RIVER AT NEWHALEM

390

Cubic Feet Per Second
METHOW RIVER ABOVE GOAT ...

775

Cubic Feet Per Second
BACON CREEK BELOW OAKES ...

999

Cubic Feet Per Second
CASCADE RIVER AT MARBLEMOUNT
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Area Campgrounds

Location Reservations Toilets
Sinister PeakImage Lake Group Campground Preview Image Lake Group Campground
Sinister PeakWaynes camp Preview Waynes camp
Sinister PeakLady camp Preview Lady camp
Sinister PeakCloudy Pass Camp Preview Cloudy Pass Camp
Sinister PeakLyman Lake Camp Preview Lyman Lake Camp
Sinister PeakSulphur Creek Campground Preview Sulphur Creek Campground