Drivers can expect high gasoline costs through autumn, with the national monthly pump price not falling below $1.50 a gallon until November, the government said Monday.

Gasoline costs, which hit a record high of almost $1.75 a gallon two weeks ago, should fall to a monthly average of $1.67 in September, $1.55 in October and then finally drop below $1.50 in November, the Energy Information Administration said in its monthly energy forecast.