1. Login to your website administrator (http://yourwebsite.com/administrator)
2. Click "Extensions" and "Modules" from the top menu.
3. Click "Weather or Site-wide Announcement." (This name may be slightly different based on your site.)
4. Edit your message.
5. On the right side of the screen, make sure "PUBLISHED" is selected. Change your START PUBLISHING and FINISH PUBLISHING date and time. Your message will appear automatically between those values. You won't have to come back to remove the message if the date and time is set correctly.
6. Click "SAVE AND CLOSE." Your message is now set.