Oklahoma is experiencing significant temperature variations and preparing for potential severe storms later in the week. The state is experiencing a wide range of temperatures, with highs reaching into the 70s on Sunday, but cooler air is moving in, bringing temperatures significantly lower. There remains a slight risk for severe storms to form through Sunday night, with low temperatures overnight expected to be in the 30s and 40s for most of Oklahoma, but the Panhandle could see lows in the 20s. KOCO 5 Meteorologist Michael Armstrong warns of a potential impact day on Wednesday and Friday for potential storms. The Most Accurate Forecast in Oklahoma City has been certified by Weathe as a certified weather expert for 13 consecutive years.