I commute by bike in my US city, and the weather concerns are alleviated 90% of the time just by having the right clothing. If you have gym clothes, that's what you wear during hot/warm weather. If you have cold weather hiking clothes, that's what you wear during cold/cool weather. Pack a small towel and a change of clothes for your destination, and you're all set. It's actually easier to do this during the warm months because you wear fewer layers and the clothes aren't as bulky. I use a rack-mounted bag more often in winter to carry those extra layers.
The remaining 10% of the time is for just straight up unpleasant weather that catches you by surprise. For example, if I bike to work in the morning and there's a huge rainstorm when I would bike home in the afternoon. When that happens, I just leave my bike at the office and catch a bus home. Or Lyft if I'm feeling especially impatient.
The remaining 10% of the time is for just straight up unpleasant weather that catches you by surprise. For example, if I bike to work in the morning and there's a huge rainstorm when I would bike home in the afternoon. When that happens, I just leave my bike at the office and catch a bus home. Or Lyft if I'm feeling especially impatient.