hello all. (newbie here). appologies if this is a rehash

We all know that Slicks make for a smoother and faster ride in fair wheather. However, if i was to purchase a flat-bar road bike fitted with slicks and used it for communting and fitness, will i put myself at risk in the wet?

Are there gradients of tires between tred and slick to enable slick performance but safety through the wet and dry, that can be fitted to a road bike wheel?

i worry as i have had knee issues in the past and can't risk a slip/crash that will further damage my knees.
Any particular recomendations?

Cheers
Andy