(Undated) — The July 4th weekend saw some of the lowest gas prices in recent years. According to this morning’s numbers from GasBuddy.com, the trend of falling prices continues. The current national average is $3.09 a gallon, a nickel lower than a week ago. Here in Illinois, the statewide average is eight cents lower than a week ago at $3.39 a gallon. Indiana drivers are paying an average of $3.10 a gallon, fourteen cents lower than a week ago. Mississippi drivers are paying the lowest statewide average at $2.66 a gallon, while California drivers are paying the highest at $4.50 a gallon…