Clear Outside 4+

First Light Optics

Designed for iPhone

    • Free

iPhone Screenshots


Reliable weather forecasts for astronomers with an emphasis on cloud cover.

Features include:

• Seven day hourly forecasts, updated hourly.
• Low, medium, high and total cloud cover.
• Moon rise/set times and phase.
• Sun rise/set and transit.
• Civil/nautical/astronomical darkness.
• ISS pass-over information.
• Automatically provides a forecast for your current location.
• Save favourite locations for easy access.
• Daytime forecasts for solar observers/imagers.

Updated hourly. Frequent hourly updates are important because often the clear spell between showers provides excellent seeing and 30-minutes under a clear sky with a grab-&-go telescopes is pure gold!

Did you notice the ISS pass-over information? The times are precisely calculated for your location and displayed alongside the cloud forecasts so it has never been easier to observe. It is our favourite feature :-)

Also includes regular weather data (wind, rain, frost, temperature, dew point, etc) so perfect for those wanting a detailed weather forecast, without cutesy graphics.

We have had a lot of fun building and testing Clear Outside and are keen to to develop it further so if you find it useful or have suggestions, please let us know.

What’s New

Version 1.0

This app has been updated by Apple to display the Apple Watch app icon.

Ratings and Reviews

3.2 out of 5
93 Ratings

93 Ratings

sdhannant ,

Bug when editing location

Wanted to add locations that I travel to frequently, one of which is not listed in the search function. Reading another review, developer states you choose any location and edit the coordinates.
That’s fine, but the app only lets me edit the longitude, not the latitude. It’s ok if you can find a location that’s pretty close to your latitude, at least you won’t be far out, but annoying that you can do one, not the other.

brianfulda ,

Has potential, but needs work

This forecast app is usually accurate, but it can be difficult to find locations in the US. Since it’s a UK based app, it lists the county in the search function and can be difficult to actually select the right town you’re trying to search for. In addition, I don’t know why they didn’t include the seeing forecast from the Canadian astronomical forecast, which is where this app pulls data from. It would be so easy to implement, but seems like a big oversight. It would be even better if users were able to input their own coordinates of their location. Lastly, it doesn’t let you easily update your home location without deleting it and re-entering it again. If they fix these issues, it would be a much better app.

Developer Response ,

This is incorrect - the app does not pull any data at all from the Canadian astronomical forecast. We do not include a seeing forecast because we are yet to find one that is accurate and reliable enough to use.

You do not have to delete a location to make a different location the home location. You simply edit the location you wish to be the home location and check the home location checkbox :-)

We will be improving the location search options in a future update including the ability to add your current GPS location or enter the coordinates yourself manually. For now you can manually enter the coordinates, simply choose any location to add and then edit the description and coordinates in the next screen.

AstroGirlBunny ,


Just tried it out. Can't believe they didn't test their app. When you go to select a location, it actually selects the one below it. I tried a few different locations and they all did the same thing. So to add a location I have to tap on the one on the list above it.

Its location search itself doesn't always work. I looked for Salem and nothing showed up. Then I did a search of "Salem, M" only because I know what county it's in. And it finally brought it up as an option.

Buggy app which makes me distrust the weather readings it provides for an area are incorrect.

App Privacy

The developer, First Light Optics, 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.

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