Scope Nights Astronomy Weather

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Scope Nights Astronomy Weather & Dark Sky App

Scope Nights is the first astronomy app to provide accurate and detailed stargazing weather forecasts worldwide, and has been providing reliable forecasts to the amateur astronomy community for the past 6 years. Scope Nights is designed to give the best stargazing forecasts available using a combination of global and national weather forecasts, and is an indispensable tool for astronomers, from amateur stargazers to astrophotographers with specific requirements for observing.


Plan astronomy events using medium-range stargazing forecasts up to 10-nights ahead & use accurate short-range stargazing forecasts to get last minute stargazing conditions and notifications.


Use a NASA high-resolution global light pollution map to find dark sky sites with clear skies. Customise weather thresholds to fine tune stargazing ratings to suit your telescope or observatory requirements.


Create custom stargazing ratings for different types of observing & share your custom stargazing forecasts with fellow astronomers via Facebook, Twitter, Email, etc.
Find Clear Skies & Go Stargazing...


  • Automatically shows stargazing weather for your current location and finds stargazing forecasts for any location worldwide.
  • Creates nightly summaries using smart weather analysis to show at a glance which nights will be most suitable for stargazing.
  • Provides 3 hourly and 6 hourly astronomy forecasts. Showing colour coded details for moon phase, cloud cover, precipitation probability, humidity, and minimum temperature in celsius or fahrenheit. Along with overnight average wind speed and gusts in mph, knots, kph or mps.
  • Uses short range national weather forecasts updated hourly using weather data provided by NOAA and Met Office. Along with medium range global stargazing forecasts derived from the European numerical forecast model. Renowned worldwide as providing the most accurate medium range forecasts.

Please see the National Astronomy Weather page for more details.


  • Detailed global light pollution map derived from the latest NASA satellite data. Designed to help you find local dark sky sites with the best stargazing forecasts. Use the dark sky map to select any Scope Site, Observatory or Dark Sky Site and view the latest stargazing forecast in detail.
  • Map markers showing tonight's stargazing ratings for your favourite Scope Sites, and the latest international dark sky sites & major astronomical observatories. Along with searchable lists of dark sky sites and major astronomical observatories. Just select any Observatory or Dark Sky Site and add them your Scope Sites list.
  • Creates a list of best stargazing sites that shows which of your favourite Scope Sites has the best stargazing for each night. This is useful if you have a choice of stargazing locations, but want to choose the one with the best stargazing conditions.
  • Compare stargazing forecasts for your favourite Scope Sites. Use the Scope Sites page to remove Scope Sites or change the order of your Scope Nights summary page.

Please see the Astronomer's Weather Settings page for more details.


  • For astronomers who don’t have time to observe through the whole night... Choose night, evening or morning coverage to give more relevant stargazing ratings.
  • Analyses weather, cloud cover, wind, humidity, temperature and moon phase paramaters. Then creates stargazing ratings using weighted algorithms.
  • Create custom stargzing forecasts using threshold adjustments for moon phase, wind, temperature and humidity to suit your observing requirements. Also includes wind speed gust sensitivity switch for those with large telescopes or in exposed locations.

Please see the Astronomer's Weather Settings page for more details.

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If you enjoy using Scope Nights and find it useful, please recommend Scope Nights to others by giving a good rating in the App Store. It helps to ensure Scope Nights is developed further and keeps getting better!