No you can't. Phone must be rooted to replace the original weather apk.
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---------- Post added at 07:24 PM ---------- Previous post was at 07:15 PM ----------
The other way is to extract the file. Copy n paste to root-system-app by replacing the original file. If your rom is stock delete the AccuWeather.odex and restart your phone. Dont forget to backup the original file first.
Sent from my SM-N9005 using XDA Premium 4 mobile app
I try it, i replaced it also restart the phone but nothing happened????