Parts of Norfolk could see a 10C bump in temperatures as a short period of warm weather is predicted for midweek.
The Met Office is forecasting that the chilly temperatures of this weekend will give way to much milder conditions during the week, with parts of the county seeing highs of 21C.
According to the forecaster, the drastic shift in temperature is expected to peak on Wednesday when a wave of hot air coming from Spain over the Pyrenees will hit the UK.
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King's Lynn and Downham Market will be the warmest places in the county with temperatures hitting 21C.
Norwich, Thetford and Dereham will see highs of 20C with Cromer and Great Yarmouth reaching 19C.
Tom Morgan from The Met Office said: “It’s not going to be an Indian summer – an Indian summer is a period of fine, settled weather with widely high temperatures after a period of frosts.
“We have had some frost but it’s only going to be a day or two that we see these high temperatures.”
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