[Given how chilly it still is, he'd think standing out in the rain would make that even worse...! As such, he looks, perhaps, not entirely convinced, but she sounded confident enough that he wouldn't want to press the issue too hard right away.

He still moves in closer toward her, answering with a thoughtful and sincere,] Ah, yeah. Some plants are sprouting up in pretty inconvenient spots, I wanted to help get them to somewhere better to grow. [It may be at the robots' suggestion, but his interest in this task is a genuine one.]

Are you trying to figure out what's going on with the rain?