My first priority for a tent is like yours. Stay dry!
For the last seven seasons I've been using a Coleman Hooligan 2 for both plane and motorcycle camping. It's a 2 person tent with a relatively large footprint, so there's plenty of room for gear.
It's a basic single pole tent, so you do have to stake the 4 corners to set it up (i.e. it's not a standalone tent). It sets up in about 5 min.
For weather protection it has a 4 inch, ripstop tub floor. The rain fly comes down below the upper edge of the floor, making it virtually rain proof. I haven't gotten wet, even in torrential downpours.
The tent itself is all mesh, with the rain fly providing weather protection. As such, there is plenty of ventilation.
They retail for about $50.
https://www.amazon.com/Coleman-200000197...B00V85D0EY