Contains adsIn-app purchases
638 reviews
Content rating
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About this app

Astrospheric provides advanced weather tools for professional astronomers and astrophotographers in the Continental US and Canada, and supports hundreds of astronomical societies with tools that help members stay connected. Are you using what the pros use?

• 84 hour, hour-by-hour forecast
• CMC astronomy data updated every 6 hours (no other service provides this data)
• Ensemble cloud forecast lets you quickly compare the major forecast models with hourly updates (Astrospheric Pro)
• Extended cloud forecast
• Kp index for Aurora viewing (and alerts with Pro)
• International Space Station (ISS) flyover paths and times
• Astrospheric is the only astronomy service that integrates the smoke forecast into the transparency report
• Sky data: cloud, sky transparency, seeing
• Ground data: wind, temperature, and humidity
• Precise rise and set times for both the sun and moon
• Get weather alerts when conditions meeting your requirements are met (Astrospheric Pro)
• Details Solar and Lunar eclipse data

Astronomical Societies

• Stay connected with chat, image sharing, and event planning with all of your members.
• Qualifying astronomical societies can get Pro features for all of their members

Site Mode
• Information necessary to quickly set up your GOTO tracking mount
• Available even if you don’t have a network connection

Astrospheric Professional is now available to enable Weather Alerts, Ensemble cloud forecast, and more!
• Astrospheric Professional is billed monthly or yearly and will auto-renew unless turned off at least 24-hours before the end of the current subscription period. The renewal cost will be the same as the initial sign-up cost of the subscription. Any changes in cost will be communicated before renewal takes place.
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscriptions may be managed by you and auto-renewal may be turned off by going to the your Account Settings after purchase. A link to these settings is made available within Astrospheric "My Profile" for easy access.
• The terms of use and privacy policy may be found at, purchasing a subscription shows agreement to these terms.

PLEASE NOTE: Weather data is not available for Hawaii due to the domain area covered by the Canadian Meteorological Center. However, satellite and light pollution map layers, as well as other features will work in Hawaii.
Updated on
Oct 5, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

603 reviews
Rohit Kamath
April 9, 2024
This app is incredible. Extremely well laid out and phenomenal level of detail. W were in the Austin area for the solar eclipse and the entire area was under cloud cover. This app helped us pick the right location with the least cloud cover during the time of totality. The forecast was spot-on and helped us get a much better experience than folks in Austin proper
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Benjamin Land
November 29, 2023
Every ad (of which there are many) has a close button, which does not close the ad, but instead takes you to a page where you could "subscribe" to this service. Why anyone would be fool enough to subscribe to a UI populated with data the author is obtaining for free is beyond me. Shameless money grab there, which is a shame because the UI is nice. I would one time purchase it for a reasonable price, perhaps even the yearly price.
11 people found this review helpful
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Daniel Fiordalis
November 30, 2023
Appreciate your input! Quick fact: running Astrospheric isn't free. We handle terabytes of bandwidth each day plus processing costs, and not all data is freely available (some is proprietary). Our choice? Ads or subscriptions since we would never sell user data. Have other funding ideas? Email us at!
Kris Haggerty
June 6, 2022
From my experience, cloud cover forecasts are generally correct but are occasionally off by a few hours. In those instances, app will sometimes update the forecasts correctly in real time but at other times will continue to show me an incorrect real time forecast. Having said that, I haven't found anything more accurate. Wish the pro was a one-time fee rather than recurring sub.
22 people found this review helpful
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What's new

Eclipse will now show on the detailed and extended forecasts
Updated Eclipse colors to make them easier to see
Performance fixes for eclipse calculations and astro-clock
Bug fixes