I want to reinstall the Apple-provided Weather app. From those I’ve tried, the Weather app that came with my iPad is NOT available in the App Store

Bittersweet522 Said:

"I want to reinstall the Apple-provided Weather app. From those I’ve tried, the Weather app that came with my iPad is NOT available in the App Store"

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Reset the Home Screen Layout:

If the Messages widget has gone missing somehow, then you need to reset the Home Screen Layout...

Go Here: Move and organize apps on iPhone - Apple Support

Note: You'd have to add back all the widgets that you can recall being back on there. So, make note of them.

Scroll to: Reset the Home Screen and Apps to their Original Layout

1. Go to: Settings
2. Tap: General
3. Tap: Reset
4. Tap: Reset Home Screen Layout

There has never been a weather app for iPad/iPadOS.

ONLY a weather widget.

You need to reinstall the weather widget.

Tap the link below.

Use widgets on your iPad - Apple Support

Good Luck to You!