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 Columbia River Gorge is a deep river canyon carved through the Cascade Range, and its geography funnels marine air from the Pacific into the interior, producing persistent low cloud and fog in fall and winter. The canyon walls rise up to 600 meters above the river, and fog often fills the gorge while the basalt cliffs above remain clear.
Crown Point and Vista House offer the most dramatic elevated views looking east down the fog-filled gorge. The Historic Columbia River Highway pulls over at multiple waterfall viewpoints where mist and fog combine with the falls for layered compositions. Multnomah Falls in particular becomes ethereal when the gorge is socked in with low cloud.
Fall and winter are the primary fog seasons, from October through February. The gorge is one of the windiest places in the Pacific Northwest, so calm days with fog are relatively rare and worth chasing. FogCast's wind reading is especially important here: high wind quickly disperses any fog that forms.