Today’s weather will be a lot like the rest of this week’s: foggy morning, damp showery afternoon with highs around 70. But the forecast for the weekend is considerably brighter, with partly sunny days and highs in the mid-70s. Perfect weather to get outside and participate in one of the many activities happening around the neighborhood as part of It’s My Park Day; check out our list. LoMA is putting on “Hair,” the musical, and Rooftop Films are showing.