Lil Wayne won't be going to jail today after all -- this time due to a fire today in the basement of Manhattan Criminal Court, We were told the fire occurred sending smoke throughout the building and causing a complete evacuation.
After all fire was controlled by y 11:55 AM ET -- but the damage was done ... because Lil Wayne's attorney says the courthouse has now been shut down for the rest of the day.
Wayne -- who pled at fault to attempted weapons control last year -- was supposed to be sentenced last month ... but the rapper was able to delay the hearing until today so he could have dental surgery on his grill.