Weather completely effects what I wear to work. It's part of the reason I have such a hard time planning my outfits the day ahead!
If it's going to rain HARD, I will throw fashion to the wind and wear rain boots, and carry my shoes in a bag. I'll even put my purses in a waterproof bag. Rain here can be vicious, and fall sideways.
I have a few pairs of fashionable boots that are weatherproof. If it's snowing, or messy, I wear high boots with skinnies tucked in. Wearing full length pants in the winter is a real hit or miss... this year it's been totally possible, but other years they don't see the light of day. People who purge bottoms because they don't get worn one year would be replacing annually!
I once had a new pair of lovely, not cheap shoes get ruined by an unexpected rain, and I'm not letting that happen again. Practicality will win out every time for me.
I used to wear more "wintery" boots to work, and change into shoes I kept at the office. But I find the variety of footwear I want to wear too big for this now. Plus I have better weatherproof fashion boots. And walk less far.