
I found this page that has various webcams across Kauai .
Check the traffic and weather before you set out for Lihue.
This is a screenshot of one of the many views, I haven't been able to figure out how to embed the streams.

Mike Strong (left) of Kahili Farms with Digby and Alison Gotts owners of the Cape Trib Exotic Fruit Farm touring Mike's orchards here on Kauai in July 2000.