• View from Sourdough Mountain Overlook  A view looking down onto Diablo Lake. Photo Credit: NPS/Michael Silverman, 2010.

    North Cascades

    National Park Washington

There are park alerts in effect.
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  • State Route 20 closed at Mile Post 134, Ross Dam

    After a brief closure at Newhalem due to an avalanche and unstable conditions, SR 20 has re-opened to its normal winter closure point at MP 134, Ross Dam. The highway will remain closed from Ross Dam to MP 171 (Silver Star Creek) until spring re-opening. More »

  • Ross Dam Haul Road Closure Continues

    A short segment of the Ross Dam Haul Road between the Diablo Lake suspension bridge and the tunnel remains closed to public use due to continued recovery following a March 2010 landslide. The closure will remain in effect through 2014. More »

  • Notice of planned work for the Cascade River Road, fall 2014

    Visitors planning to access the park via the Cascade River Road after Labor Day should be advised that the Park Service is planning a fall closure of this road at Eldorado Creek (3 miles before the end of the road) in order to perform permanent repairs. More »

Weather

The best weather for visiting the North Cascades generally occurs between mid-June and late-September. Snow is off all but the highest trails by July. Autumn and Spring are becoming more popular for visits since car tours of the Skagit, Okanogan and Stehekin Valleys are enticing for color and wildlife during the less busy "shoulder seasons". Day hikes are excellent and give a great taste of the wilderness, whenever the weather is good. Storms are common: always be prepared for a few days of rain and wind. Warm, waterproof clothing and a tent are necessary for spring, fall and winter trips into the backcountry. Heavy snow and rain, at high elevations, characterize the North Cascades every winter. Avalanches are common in winter and spring in these steep mountains and even in places along the North Cascades Highway.



The east side of the Cascade Mountains (such as Stehekin in Lake Chelan National Recreation Area) is drier and warmer in the summer than the west side. Summer temperatures at Stehekin reach the 90's F. Winter at Stehekin and at all elevations above 2,000' throughout the park complex may be snow covered from late fall into spring.

Did You Know?

Did You Know?

North Cascades NPSC has over 300 glaciers, more than any other park in the lower 48 states. More than half the glaciers in the 48 states are concentrated in this mountainous wilderness region called the North Cascades.