Weather in April is mid 50's to mid 60's with a fair chance of April showers.
Ride: 68 south west is a great ride with hills and turns, good food and a nice experience at the old Shaker Village, then on to 150 up to Bardstown (My Old KY Home), then south on 31E to 88, 84 east back to 68. Good ride.
In the January/February 07 issue of Road Runner
www.roadrunner.travel they had a "Shamrock tour" out of Bardstown, KY. I have done this and all roads are nice. You may be able to order a back issue of this mag. from Road Runner
www.roadrunner.travel/issuedetail-71.php.
From Lexington, head south east to the Daniel Boon National Forest. Good riding in this area.
Ride east along the Ohio rive is also a good ride
I live in southern Ohio but love to ride down in to KY.
Ride safe
Also check this out, good ride information:
http://www.hdforums.com/m_3094505/tm.htm