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Raspberries (and blackberries and all those similar) have a short shelf life which is why you rarely see them sold in stores. They might last a day or two but go bad fast (even with refrigeration.) Blueberries also go bad quickly but can last a bit longer. Yes, refrigerate them, but don't wait too long to eat.
How to Freeze Blueberries. 1. Wash blueberries and drain. 2. Dry berries gently with a towel (not necessary, but makes the blueberries completely ice free). 2. Place blueberries in a single layer on a cookie sheet or jelly roll pan. 3. Place in freezer until frozen, about 7 hours, or overnight. 4. Transfer berries to a sturdy plastic bag. Squeeze most of the air out and store in freezer.