Artemis 1 cleared its flight readiness review a few days ago and remains on track for a Monday launch.
Weather remains 70% Favorable, Teams on Track to Begin Countdown Saturday
Currently the launch window is two hours, starting (Monday 29 August, Australian time):
Eastern - 10:30pm
Central - 10:00pm
Western - 8:30pm
You can watch it on
NASA TV. Or view via the YouTube
Artemis 1 Broadcast or YouTube
NASA TV stream.
Edit: You can also watch via the NASA TV app, which is available on Android, IOS and Windows devices, as well as pre-installed on some streaming boxes (e.g. Fetch, AppleTV).
More here:
How to stream NASA TV