Astrospheric is the most advanced forecasting service for North American astronomers

Using the amazing astronomy data produced by the Canadian Meteorological Center, NOAA, and more, Astrospheric quickly produces a highly accurate 48 hour forecast for any location in the continental United States or Canada.


• 48 hour, hour-by-hour forecast
• Extended 10 day cloud forecast
• Kp index for Aurora viewing
• Sky data: cloud, sky transparency, seeing, and smoke
• 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

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

The Astrospheric Subscription is now available to enable Weather Alerts
• The Astrospheric subscription is billed monthly 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 that 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.

What’s New

Version 6.3.4

- Bug fixes
- Improvement to push notifications for newer devices

Ratings and Reviews

4.9 out of 5
228 Ratings

228 Ratings

behebdhd ,

Always improving

This app has always been very reliable in planning my imaging sessions here in New England, and the weather can change on a dime out here. This summer it was especially helpful that the smoke map is integrated into their transparency forecast. Then recently, it was added that there would be 3 forecast models being used to determine cloud forecasts. It’s very simple to read. If the cloud box shows one solid color, all 3 models are in agreement. If there’s 3 different colors, there’s some variation in the forecast between models, which you can see by selecting any particular hour of the forecast. Helps very much with having the confidence to drive the 2hrs to my dark site, knowing the sky will remain clear with all 3 models in agreement. They’re always improving as the title suggests. Worth every penny! The icing on top is the astrophotography sub space where we can all share our work and help each other improve. Hands down my favorite app for planning my sessions.

HuntzF ,

Great weather forecast app for astronomy

Astrospheric is an amazing weather app for astronomy and astrophotography enthusiasts. I have been using it for over three months, and the app tells me everything I need to know about sky and ground conditions (cloud cover, transparency, seeing, wind speed and direction, temperature, dew point, sun and moon rise/set times and elevation, moon phase details, etc). Tapping on any hour will give an estimated cloud cover map. Included are also various map layers like smoke, cloud, transparency, seeing, temperature, dew point, wind, etc as well as actual satellite imagery (IR, visible, water vapor, GOES-16). I also like the light pollution map that tells me how dark a location will be when I travel. Daniel Fiordalis, creator of the app, is an amateur astronomer and professional programmer, and you can appreciate all the love that went into creating this app. Thank You!!!

NeoObserver ,

Excellent app for astronomy

Living in a city with moderate light pollution limits observing and astrophotography. Driving to a dark site is great - when the skies are clear and calm when you get there. And that’s the problem - how can weather through the evening be predicted accurately?
I regularly use five apps to help predict the likelihood of a calm, clear night for astronomy. It is great when a majority give similar predictions, but often this does not happen.
Over time, Astrospheric has become my “go to” app. I love the hourly cloud cover predictions and frequent updates. The core of what an observer or astrophotographer needs to make the decision to go or stay is clearly presented and most often correct. Many thanks to the developers!

App Privacy

The developer, Daniel Fiordalis, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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