The 53rd annual Pembroke Art Festival has a deadline of August 2nd, 2020 and is all online except maybe the very top winners which might be displayed somewhere :).
Ah, this darn pandemic. It throws everything into disarray.
Their main rules:
All entries must be the original work of the artist, must have been created within the last Four Years, and may not have been previously exhibited in the Pembroke Arts Festival.
There is a $12.00 non-refundable fee per entry and there is no limit on the number of entries.
Full details are here: