Which months and which hours, from Vancouver, BC.
Mount Rainier, Mount Hood, Mount Baker, Mount St. Helens, Denali, The Olympics and Mount Angeles. Visible now or not, the five-day forecast, and the sunrise and sunset light. $1.99, one time.
From Vancouver the mountain is most reliable from July into early October. Late September and October often bring a run of clear cold mornings before the winter overcast sets in.
Abbotsford and Bellingham are closer and on the corridor toward the mountain, and are often clear when the coast is socked in. Anacortes and the islands see it across the water on the same days.
November through February is mostly overcast at the coast, with the mountain appearing on the clear days after a front. Sunset lights the west side, which is what Vancouver sees.
Reading the airports along the sightline.
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We read the cloud ceilings at the airports between Vancouver, BC and the summit, the cloud layers at the summit from the MET Norway model, and whether that cloud sits below 10,781 ft. No crowd reports.
Cloud forecasts get less reliable the further out they go. Days four and five are drawn in six-hour steps for that reason, and the forecast stops at five.
Different weather stations, different sky. The same morning can be fog in one and clear in the other, twenty miles apart. Each region page reads its own stations.
Wildfire smoke and haze can hide the mountain on a day the cloud numbers say clear. When the numbers are unsure, the page says so.
Our pick for binoculars: Vortex Diamondback HD 10x42 on Amazon