Danger in drains blocked by leaves
Forecasters are warning there's a risk of localised flooding.
Rain is expected to turn persistent and heavy this afternoon - through the rest of the day, into the night and early tomorrow morning.
Ronaldsway Met Office says it's likely there'll be 15-30 mm of rain, but 30-45 mm on higher ground.
Central, south and east areas could be the worst affected - but the greatest danger lies near drains blocked by fallen leaves.