FogCast · Catskills, NY

Fog Forecast for the Catskills

Know before you drive: FogCast checks the conditions that produce photogenic fog

Reading current conditions…
Current Conditions
Fog Potential:
Humidity
Wind
Temp
Dew Point Gap
Get notified when fog is likely →

FogCast heatmap — LightCast Suite
LightCast
iOS App LightCast Suite
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🌫️ FogCast — fog & mist forecasting
☁️ CloudCast — cloud cover & dramatic sky timing
🗺️ Heatmap — conditions across the region
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The Catskill Mountains rise sharply out of the Hudson Valley, and that elevation change is what makes them one of the best fog regions in the Northeast. On the right morning, valley fog pools below the escarpment while overlooks along the ridge sit in clear air above it, an inversion that photographers chase specifically for the "sea of clouds" effect.

North-South Lake and the Catskill Escarpment Trail are the go-to viewpoints, looking east over the Hudson Valley as fog fills the lowlands at sunrise. Kaaterskill Clove offers a tighter, more dramatic composition with fog threading through the gorge itself. Both require an early start since the inversion layer can break up within an hour of sunrise.

Late summer through fall is prime season, when warm, humid days are followed by cool, clear nights, the setup that produces strong radiation fog and inversions. Check for calm winds and a recent clear night: any cloud cover overnight prevents the ground from cooling enough to trigger fog.



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.

Dew Point Depression
When air temperature and dew point converge below 2°C, the air is near saturation. This is the single strongest fog predictor and the first thing FogCast checks.
Wind Speed
Fog needs calm air. Below 5 km/h is ideal. Above 15 km/h, fog disperses before it can pool in the valley. A standard weather app won't flag this combination.
Overnight Sky Clarity
Clear overnight skies let the ground cool rapidly, pushing surface temperatures toward the dew point. Counterintuitively, clouds overnight suppress radiation fog.
Temperature Trend
FogCast reads the overnight temperature arc. If temps are converging toward the dew point hour by hour, fog probability increases significantly by pre-dawn.
Check today's FogCast

FogCast score and forecast in LightCast app FogCast score and forecast in LightCast app

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Frequently asked
Can I check FogCast on the website?
This page shows a preview of current conditions, including humidity, wind, temperature, and dew point. The full FogCast score, 7-day outlook, push notifications, and best shooting windows are available exclusively in the LightCast app for iOS.
Is FogCast free?
The current conditions preview on this page is free, no account needed. The full FogCast tool is in the LightCast Suite iOS app, which includes a 7-day free trial. After the trial it's $2.99/month, cancel anytime in the App Store.
Why use FogCast instead of checking humidity?
Humidity alone doesn't tell you whether photogenic fog is likely. High humidity with strong wind produces no fog at all. FogCast combines dew point depression, wind speed, overnight sky clarity, temperature trend, and visibility into a single score built specifically for fog photography planning.

What is FogCast's scoring scale?
FogCast scores fog conditions from 0 to 100. A score of 75 or above indicates dense fog is expected. 55 to 74 means fog is likely and worth chasing. 35 to 54 suggests patchy mist is possible. Below 35, conditions are unlikely to produce photogenic fog. The full score is available in the LightCast app.