Strains that thrive with mild temp and rain?

Sativa dominant strains with less dense buds cope with wet conditions better than thick and dense Indica type buds. Mild temps will not really be too big an issue.

I just moved from a place like that, saw many a grower lose crops due to bud rot, freezing temps, and snow fall cutting the season short. If it were me I would look at an indica, and probably run an auto to prevent it from running too late into the fall.

Most of your "indica dominate" strains should work. Something bred for mold resistance is recommended. Different breeders target different traits in strains so some are more appropriate than others. Growing outdoors pay attention to your flowering times when selecting strains. You don't want something that's gonna run longer than your climate allows.

We had terrible summer in uk, few days of sun and rest of summer rains. This year tried like 15 strains, best was Seed Mafia AK auto. Still got bud rot , but she coped best from Zami, Fast Buds, Ganja farmer and few other houses.

northern lights i hear is a nice strain to do and can survive lower temps hence the name lool but yeah pretty much any strain you can do but i would reasearch this online on forums and stuff would only take 5 mins :) best of luck buddy.