I like Susan's suggestions, mostly because I have that jacket and those knickers (thanks TE!). If it were me, I'd dress for the cold weather, but as it warmed up, I would make sure to take off what I needed to take off on my upper body so that I didn't up drenched in sweat. You want to avoid a wet base layer/jersey by the time the temps drop again at night. I'd also carry a spare pair of charcoal toe and hand warmers.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher