Astrospheric

Astrospheric Astrospheric brings advanced astronomy-focused weather for stargazing and astrophotography in the Continental US and Canada. Get an 84-hour hourly forecast, refreshed astronomy data every 6 hours, ensemble cloud comparisons, and aurora/ISS/smoke tools.

Astrospheric

Astrospheric is an essential app for professional astronomers and astrophotographers across North America, designed to sharpen your sky-watching plans with advanced weather tools. It helps you choose the best moments for celestial observing with an 84-hour, hour-by-hour forecast, astronomy data refreshed every 6 hours, and an ensemble cloud forecast that weighs multiple major forecasting models against each other.

You can also use it to plan for Aurora viewing with the Kp index, follow International Space Station (ISS) flyover passes, and include smoke forecasts within transparency-style reporting—so you can better judge what the sky will really look like.

Download Astrospheric and start planning smarter nights under the stars.

About Astrospheric

Astrospheric is built for astronomers and astrophotographers who want weather guidance tailored to their observing needs, specifically for the Continental United States and Canada. Available on Android, the app gives you a full set of tools to help plan astronomy sessions with confidence.

Key highlights include an 84-hour, hour-by-hour forecast so you can track changing conditions that may affect stargazing. It also provides CMC astronomy data, updated every six hours, offering astronomy-focused information in near real time.

For cloud coverage, the ensemble cloud forecast lets you compare several forecasting approaches with hourly updates. This makes it easier to pick observation windows based on the most dependable cloud predictions. The app also includes an extended cloud outlook for a longer-range view of cloud conditions.

Features

• 84 hour, hour-by-hour forecast: Get weather predictions for the next 84 hours, showing how conditions evolve across both day and night.
• CMC astronomy data updated every 6 hours: Receive exclusive astronomy-related updates every 6 hours to help you schedule stargazing more effectively.
• Ensemble cloud forecast: Compare multiple forecast models with hourly refreshes, so you can make decisions based on the most trustworthy data.
• Kp index for Aurora viewing: Monitor the Kp index to spot the best times for seeing the Aurora. Get notifications when conditions look promising.
• International Space Station (ISS) flyover paths and times: See where and when the ISS will pass overhead to help you catch every opportunity.
• Ground and sky data: Review key observing metrics such as wind, temperature, humidity, cloud cover, sky transparency, and seeing conditions—then use them to plan your activities.

Tips for Users

• Make full use of the 84-hour forecast: Use the hourly breakdown to plan both stargazing sessions and astrophotography outings. Knowing conditions ahead of time helps you get more productive observing time.
• Compare forecast models regularly: With the ensemble cloud forecast, check the major models the app provides and look for agreement to find the most reliable window.



• Turn on weather alerts: Enable notifications so you’re informed when conditions match your observing needs—helping you seize good opportunities and avoid poor weather.

Conclusion

Astrospheric is a powerful weather forecasting app for North American astronomers, astrophotographers, and sky enthusiasts. It uses up-to-date data from leading meteorological sources in the United States and Canada to deliver detailed, accurate forecasts. The app overlays cloud, transparency, and seeing information directly onto a map, making it simple to scan the next two days and find the best viewing conditions.

It also provides a list of nearby locations that are forecast to have favorable weather. Astrospheric is available as a free download on iOS and Android.