If possible, yes. Eureka and the surrounding area is comprised of small towns, meaning your chance of finding an Uber/Lyft from the Airport to your accommodations would be highly un-likley (ie. impossible). That being said, you are welcome to prearrange a taxi or coordinate with other guests who will be arriving at a similar time as you. Link to Car Rentals: https://www.nationalcar.com/en/car-rental/locations/us/ca/arcataeureka-airport-30nh.html?mcid=yext:245709
Like most of California, the weather in Humboldt County can be very unpredictable. Unlike the rest of California however, the universally accepted standard in the area is cloudy and wet (hence why all events are indoors). We recommend packing accordingly.
We have listed many possible options for hotels but we do want to add, there are plenty of beautiful Air BnB's in the area. Particularly check out locations in Trinidad if you are looking for amazing ocean or forest views!
We encourage you to glam it up however, our number one preference for dress code is that everyone is comfortable and confident. If that is a full length ballgown or Crocs and sweatpants that does not matter to us. We value your presence far more than you appearance!