Doesn't like water..

Zeke seems to be afraid/hates water..He's been doing SO good with potty training, and now that its getting wet out, he won't go outside. It's kinda just rainy here, like LOTS of rain, and its above 0 so the ground isn't frozen. I was thinking he doesn't like the feeling of the ground under his paws..but, I don't always have a lot of time to clean up pee..like today, I have a math test to study for, last night, and big bio test...-sigh- Anyone have any ideas to get him to pee outside?