Should be 70-80 and sunny or so during the day, down to the 50s at night. I know the 50s doesn't seem real cold, but that's jacket weather here.
Outdoor pools won't be open unless they're heated, which is rare. Mine has a heater and if I weren't the cheapest man alive, I might even use it. Kinda sucks now because all I can do is look at it and clean it until May.