ClearNights
Hour-by-hour stargazing forecasts combining seeing, clouds, moon, and twilight into one score.

What it does
ClearNights provides hour-by-hour stargazing forecasts that combine atmospheric seeing, cloud cover, transparency, moonlight, and twilight into a single 0–100 score for each hour of the next four nights. The platform also notifies users about celestial events such as meteor showers, lunar eclipses, northern lights, and planetary alignments visible from their location. Forecasts are available for over 50,000 cities and towns across the United States, Canada, the United Kingdom, and Ireland.
Who it is for
ClearNights is built for backyard astronomers, amateur astronomers, astrophotographers, and anyone who enjoys stargazing. It helps users plan the best time to observe the night sky by providing a specialized forecast that goes beyond generic weather reports. The app is also useful for dark-sky chasers and those who want to catch specific celestial events without relying on guesswork.
Why it matters
Traditional weather forecasts do not account for factors like atmospheric seeing, transparency, or moonlight, which are critical for stargazing. ClearNights solves this by combining five key factors into a single, easy-to-understand score. This saves users time and frustration by helping them avoid poor viewing conditions and identify the best windows for observation. The notification system for celestial events ensures users never miss a meteor shower, eclipse, or planetary alignment.
Launch signal
ClearNights has launched its website with free forecasts by city name or ZIP code. The mobile app is listed as "coming soon" on both the App Store and Google Play. The platform already covers major cities like Phoenix, Los Angeles, New York, Chicago, London, and Toronto, with more locations being added. Premium features, including personalized notifications and advance alerts for celestial events, are available through an in-app subscription.
Brand and naming
The name "ClearNights" is straightforward and memorable, directly communicating the core value proposition: clear skies for stargazing. The brand positions itself as a specialized tool for astronomy enthusiasts, differentiating from general weather apps by focusing on astronomical conditions. The logo and website design use a dark, space-themed aesthetic that reinforces the stargazing focus.
Related
Get more like this in our weekly newsletter.