Philadelphia is preparing for a mild Valentine's Day, with temperatures above freezing and sunny skies. According to CBS News, the Delaware Valley will experience slightly cooler conditions compared to previous days, but the mercury will remain above freezing. This trend is expected to continue for the next 7 to 10 days, providing a respite from colder winter temperatures. The forecast indicates sunny skies and highs reaching 4 to 9 degrees Celsius, making it a pleasant day for outdoor activities and Valentine's Day celebrations.