There is a chance for a little bit of thunder activity and pockets of showers this afternoon and into this evening. There are going to be showers through most of the week and temperatures not much above 15ºC.
Here is the 2-5PM look for Monday. The showers start in Duncan. This is the most likely time to hear some rumblings.
Between 5-8PM the Alberni Valley gets some showers as well.
Things dissipate after that and are calm through the night.
Tuesday starts much like Monday locally but a large body of moisture starts to approach the coast Tuesday morning.
The moisture moves onto the Island by afternoon and picks up steam in the 2-5PM hour.
The showers last most of the night. Things get a little more intense on Wednesday when a fairly strong low runs into the Oregon and Washington coast.