The price at the pump is falling in South Dakota and across the nation. The average price for a gallon of gas in South Dakota today is $2.72, according to the gas price tracking site GasBuddy.com. That's just under two cents cheaper than a week ago. A year ago the average price was $3.48. The national average for gas is just under $2.69. Analysts expect that the latter half of the summer will bring cheaper gas prices while the fall could see gas prices dropping below $2.00 a gallon. GasBuddy's midcontinent and southwest petroleum analyst Will Speer joined Dakota Midday and discussed the falling prices.