Hi there! I see you're experiencing an issue where the 1Weather app shows a blank screen and doesn't respond. Let's get this sorted out for you. Could you tell me a bit more? For example:

- When did this start happening?
- Have you tried reopening the app or restarting your Mac?
- Are you seeing the problem on just 1Weather, or are other apps affected too?
- Are you connected to the internet properly?

Knowing this will help me tailor the best fix for your OS X 10.15.7. Meanwhile, I’ll outline some general troubleshooting steps we can go through together.

1. Restart the 1Weather app: Quit the app completely and then launch it again.
2. Check Network Connection: Ensure your Mac is connected to the internet without restrictions like VPNs or firewalls that might block 1Weather’s data.
3. Update the App: If you have installed 1Weather from the Mac App Store, check if there’s an update available and install it.
4. Reboot your Mac: Sometimes a simple restart can help clear minor glitches.
5. Clear app cache/data: Mac apps usually have cache files stored; resetting those can fix blank screens. Since 1Weather may not have a manual cache clear option on Mac, you can try uninstalling the app and reinstalling it fresh from the App Store.
6. Check Location Access: Make sure 1Weather has permission to access your location in System Preferences > Security & Privacy > Privacy > Location Services.
7. Check Notifications/Permissions: Sometimes insufficient permissions cause data not to load properly.

If you could try these steps and tell me what happens, we can then proceed further. If the app still shows blank, I can help you dig deeper or connect you with higher-level support.

How does that sound? Does anything stand out with your setup or usage?

Cannot find in the App Store for reinstall

Thank you for letting me know you can’t find 1Weather in the Mac App Store for reinstalling. That might be because 1Weather is primarily available as an iOS app for iPhone and iPad, and it may not have a dedicated version for macOS that you can download directly from the Mac App Store.

Are you running the app through any iOS app compatibility mode on your Mac, like M1/M2 Mac with Apple Silicon? Or are you accessing 1Weather via a browser or some other way?

If it’s not a native Mac app and you’re using it on iOS devices, you would find it here:
1Weather on the iOS App Store

For your Mac specifically, if you want to use reliable weather information, I could suggest alternatives such as using Apple’s built-in Weather app (if available on your OS) or checking weather via popular websites.

Alternatively, if you still see 1Weather as an app on your Mac but it’s blank, it might be a version installed through third-party means or an older setup that’s now unsupported.

Could you share how exactly you installed or access 1Weather on your Mac? That will help me recommend the best next steps.

Are you satisfied with this explanation so far?