... since it's at Winter Pool (which is only 2ft below Summer Pool), I'd venture to say that ALL the ramps are usable. What it will be by "next weekend", will depend on how much rain/snow we get between now & then. You can always check here : Louisville District Daily Lake Report ... for the most recent water levels.
I'd expect the water temps to still be somewhere in the low to mid 40's.
(no guarantees on any of this info, as I have not been to the lake & this is just my best guestimate)
... pappy