It doesn't take much warm weather before we're looking for cold treats around here.
I don't really use a recipe for popsicles, but instead, I freeze every little bit of left over juice or fruit drink in layers. Here's where an investment in popsicle freezer containers is well worth the money. That last half inch of orange juice, or the little bit of flat soft drink can be frozen in these containers, a layer at a time, until they're full. Each popsicle is then unique! (If you tend to throw out those little bits otherwise, then they're also free.)
Another summer time treat similar to a 'slushy' is made by using your blender, food processor, or ice crusher to crush ice, then make up Koolaid or a similar powdered drink mix at half strength, and pour over the ice. You can use frozen juice at half strength, too.
Those are a couple of good things about the heat. Otherwise, give me a snowstorm. :)