McClaren arrived at the club's Darsley Park training headquarters early, ready to put his players through their paces as usual at 10.30am.
There was a brief flurry of excitement when his car left again at around 9am, as reports claimed McClaren had departed, although it emerged that it was his driver and not the 54-year-old who was behind the wheel.
McClaren is treating the day as business as usual, although a decision on his future is likely to be made within the next 48 hours.
Newcastle, who lie just one place off the foot of the Barclays Premier League table with 10 games of their season remaining, are in serious danger of slipping out of the top flight for the second time in seven years.
They have won only once in their last six league games and were humbled 3-1 by Bournemouth at St James' Park on Saturday, when the crowd turned on McClaren for the first time.