The study by the Australian National University (ANU) modelled the worst-case scenario, which could "be avoided with sharp cuts to climate pollution".

According to the report, in 1960 to 1990, the average daily maximum in Moree was 26.1 degrees. The study predicts that by 2050, "if we don't stop climate change", the average daily maximum will be 30.7 degrees.

The study also predicts winter will no longer exist as we know it, and that Moree will be dominated by extreme heat throughout the year, with extreme summer temperatures to be 3.7 degrees hotter than the 1960 to 1990 summer average.

By 2050, Moree is expected to have up to 232 days above 30 degrees - 108 days more than the 1960 to 1990 average - and up to 40 days above 40 degrees - 38 days more than the 1960 to 1990 average.

There will also be 22 per cent less rainfall than in 1960 to 1990.

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The Parkes electorate as a whole is expected to be 4.3 degrees hotter and the fourth most impacted federal electorate, based on the largest average temperature increase from the historical baseline of 1960 to 1990 to 2050 projections.

The ANU report said eight of the top 20 electorates impacted by climate change are held by Nationals MPs, including five of the top six.

Australian Conservation Foundation CEO Kelly O'Shanassy said it was disappointing many of the federal electorates found to have the highest increases were represented by MPs who "do little to champion climate action, or worse, deny the established science".

"Deputy Prime Minister Michael McCormack and former Deputy Prime Minister Barnaby Joyce in particular would do well to stop dismissing established climate science and get on with better representing his communities by championing pollution cuts and programs to help them adapt," Ms O'Shanassy said.

To see how your town will fare in 2050, go to the online search tool at https://myclimate.acf.org.au/