TT organisers say this morning's weather is too poor for action on the TT course - but that could change later.
Low cloud and showers are forecast throughout today, but officials say they don't want to rule out racing later.
This morning was originally set aside for a sidecar race but the class has been suspended this year following incidents during practice week.
But racing could go ahead later - an update from race control is due at around midday.
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