You are never supposed to resin indoors unless you have access to a fume hood. It will stink up the entire house, even from the basement. What's worse, the fumes are toxic, you need the outside air to waft it away.
SF doesn't get that cold in the summer. When the temperature drops below like 50-60 degrees there is a struggle to get resin to cure. I know the weather here has been pretty mixed bag, cloudy one day, hot the next, rainy the next, blistering the next. If it's a cloudy day and the temperature is like 55 degrees, you can get away with resining, you just need to mix in more MEKP catalyst and work quickly. By using more, it speeds up the cure time so it solidifies in the mix cup quicker, but it will also be able to cure at lower temperatures. If it's 65+ degrees, I'd just do normal amounts. Really, it's only hard to do fiberglass during the SF winter (Like January to April). I listen to the news on the way from Marin to SJ if my podcasts are used up, and the weather usually reports SF being well within the temperature zone resin works at most of the day.
Hope that answered the question!