OpenWeather provides APIs for current conditions, forecasts, historical weather, pollution, energy, and environmental data.
FreemiumPick
19 alternativesClearOutside
ClearOutside provides an outdoor weather forecast lookup by address, town, postcode, or coordinates.
About ClearOutside
ClearOutside is a weather forecast site for astronomers. It provides seven-day forecasts with hourly updates, including cloud cover and other weather data. Locations can be looked up by address, town, postcode, or coordinates. The homepage describes the forecasts as international.
The site also lists sun and moon rise and set times, sun transit, civil, nautical, and astronomical darkness times, an estimated sky quality reading for a location, an annual darkness chart, and ISS passover times. The homepage states that free iOS and Android apps are available. Pricing for the website is not confirmed in the source.
Key features
- Seven-day forecast with hourly updates
- Red, amber, and green indicators for hourly observing conditions
- Low, medium, high, and total cloud cover percentages
- Moon phase with moonrise and moonset times
- Civil, nautical, and astronomical darkness times
- Estimated sky quality with magnitude and Bortle class, plus an annual darkness chart
Best for: Amateur and professional astronomers who need to plan observing sessions around cloud cover, moon phase, and darkness times.
Good for
- The homepage states that the forecasts were designed by astronomers for astronomers.
- Cloud cover is broken into low, medium, and high layers as well as a total.
- Free iOS and Android apps are listed on the homepage.
ClearOutside at a glance
- Website
- clearoutside.com
- Category
- Travel & Maps › Maps, Navigation & Weather
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, iOS, Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
ClearOutside alternatives
Tools and sites you could use instead, ranked by how closely they match.
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Snow Forecast offers customizable maps for snow conditions and weather variables such as rain, temperature, cloud, wind, and pressure.
Tropical Tidbits provides tropical weather and Atlantic hurricane information, forecasts, and satellite imagery.
Windy maps weather forecasts for wind, waves, and radar, with layers, location forecasts, and airport notices.
Popular in Maps, Navigation & Weather
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ClearOutside FAQ
Can I save a default location?
The homepage lists a Set as Default Location option.
Can the forecast be embedded on another website?
The homepage lists an Embed Forecast option.
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