My neck of the woods is perfect weather that time of the year. 70s/80s during the day and 40s/50s at night. It's also the driest season so you're almost guaranteed no rain the whole time you're here.
For $3Kish you can get a very nice 5 bedroom house on the lake most likely with your own dock. Lots of boat rentals available and you might find a rental with a boat as part of the deal.
Lots of hiking, golf, fishing, mountain biking trails, etc. Spokane's airport is about 35 miles away. If you like Reno, you'll like it here.