What the app shows you
Full FogCast score, fog type, chase-or-skip verdict, and 10-day outlook — all in the app.
Get LightCast Suite on iOS
Know before you drive: FogCast checks the conditions that produce photogenic fog
Get more than a snapshot of current conditions. The LightCast app unlocks everything to plan ahead
Humidity alone isn't enough. Wind alone isn't enough. Cloud cover alone isn't enough. Photogenic valley fog requires several conditions to line up at once, and most weather apps don't read them together.
Set a FogCast threshold once. The app will alert you when conditions at your saved locations look promising, so you're not manually checking at 4am.
Don't waste a sunrise drive. Check FogCast before you leave.
Download on the App StoreThe Maroon Bells — Maroon Peak and North Maroon Peak — rise above Maroon Lake at 2,965 meters near Aspen, Colorado, and are widely described as the most photographed mountains in North America. The distinctive dark red maroon color of the Maroon Formation mudstone and sandstone, reflected in the perfect alpine lake below, is a composition that commands attention in any light. But in fog — when wisps of morning mist sit on the lake surface and cloud wraps partially around the twin summits — the scene becomes something beyond the familiar postcard image.
The Maroon Lake shoreline is the primary photography position, with the full double-peak reflection in the lake when conditions are calm. Fog most dramatically affects the photography when it sits between the lake and the peaks, adding depth and atmosphere without completely obscuring the summits. The Crater Lake trail 1.8 kilometers above gives a different angle on both peaks and the upper cirque where orographic cloud forms. Late September is the single best week: peak aspen color in the Maroon Creek valley below, overnight temperatures near freezing, and reliable morning lake mist combine for extraordinary conditions.
Maroon Bells fog requires the morning after a clear, calm night when temperatures drop to near freezing at lake level. The lake moisture condenses into a thin surface mist in the still air before the sun reaches the lake at around 7:30am in late September. The canyon orientation means the peaks are in shadow until almost 8am, extending the fog photography window. Shuttle buses begin at 8am — arriving on the first shuttle from Aspen Highlands is the best approach for fog conditions.