I am planning to harvest them today. Was just wondering because we have had a light frost the last couple of nights and I was not in town. They are kept in the woods so hopefully they did not get to exposed.
My experience has been that plants will tolerate a light frost with no problems. You may find that the smoke has an acrid flavor once your buds are dry. Some of the best outdoor weed I ever grew was sativa that I harvested in December that stood out through a number of frosty nights. It was really good bud, but the smoke had a kind of "pine-sol" flavor.
its strain dependent some will be more acclimated to heavier frosts then others.. I do an outdoor winter run every year and I don't bother bringing the plants in at night unless im dropping under 30 degrees f..