The clerk of the course says tomorrow's TT contingency session will be used.
Thursday will see roads close for the sidecar and supersport races.
The decision to hold the races will depend on weather.
The contingency closures means the roads will close from 10am until no later than 9.30pm.
Warning over beach work in Douglas next week
Racer appeals for return of missing awning
Charity worker announces Malew election bid
Woman releases fundraising poetry book
Castletown hosts tin bath racing
New Deputy High Bailiff needed - could it be you?
Mountain Road closed for skateboarding today
Peel ready for huge community sale later