As in lots of off-season months, our experience has been that the weather can be very variable (although I'm sure SusieBea's been in HHI many more March's than we have). Once the weather was nice and sunny, mid-70s, great for biking and miniature golf. But the other time we went it was cloudy, lots of rain/drizzle and wind. I don't think the weather got above the low 60s, and it felt alot colder. But on the up side, lots of warm apple cider and the fireplace was going in Big Murgie's Den. And they still had cranberry nut cookies in the afternoon, so the trip was definitely worth it.