The Chancellor last announced a fuel duty freeze back in August, a move that Treasury figures suggest will have cost the Exchequer approximately £550 million.
But officials said that loss would be recovered by underspending in Government departments.
Figures in the Autumn Statement are expected to show how the fuel duty freeze has been paid for.
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After the heatwave come the storms, with lightning flashes illuminating the night sky across much of the country last night.
An Independence Day event at a UK base has been cancelled by the US Air Force over security fears.
British firms predict the economy should sustain a "solid" pace of growth for the rest of the year thanks to lower oil prices and inflation.