Thursday, which is an official public holiday in Sweden is set to be the sunniest day this week, with temperarures rising to 16C in the south of the country, although the far north is expected to experience rain and even sleet.
But the cooler air is set to travel south on Friday, which many Swedish workers will also be taking off. Rain is forecast on the east coast, with temperatures failing to rise above 11C.
Saturday looks set to be grey and gloomy in most places, although there will be sunshine in the far south and far north.
“On Saturday, we have a new frontal system on the way from the west – the clouds will thicken up, and it looks like there will be mostly cloudy weather in Gothenburg and Malmö. In Stockholm, it is likely to be clearer,” Erik Rindeskär, a meteorologist at at Sweden's Foreca weather agency told Swedish newspaper Metro on Wednesday.
But he added: “There is no summer in sight”.
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Rain, thunderstorms and windy weather are set to sweep across the country on Sunday.
“We won't be finding any summer warmth,” said Rindeskär.
Parts of southern Sweden have already been battered by heavy rain and thunder storms this month, with one house in Höllviken, near the south-western tip of Sweden, even burning to the ground after lightning struck.
The average maximum daily temperature in southern and central Sweden May is around 16C.