The pattern setting up across Europe will have residents across the continent experiencing very different forms of weather for the final days of May. While summerlike conditions flourish in one region, an early-spring chill will be in store for another location.Sunny skies and a southerly wind will allow some places across Western Europe to bake in warmth for the next several days.”For much of this week, temperatures will be running 2-4 C (3-7 F) degrees above normal over parts of Western Europe, including France, western Spain and Portugal,” Meteorologist Tyler Roys.Away from the coast, interior locations of France, Portugal and Spain are expected to surge more than 5 C (9 F) above normal for at least a day or two, leaving major cities like Dublin, London, Paris, Madrid and Lisbon all sweltering in heat more akin to summertime.At the peak of the warmth, Paris is expected to soar to 25 C (77 F), a high temperature that is more normal for early July.
London’s temperatures will also slowly climb to around 25 C (77 F) for the middle of the week, when the normal late-May afternoon temperatures are around 17 C (63 F).After a hot weekend, parts of Spain and Portugal will get a few showers early in the week, allowing temperatures to drop. Even though Madrid will have to typical mid-June temperatures around 27 C (81 F) on Tuesday, temperatures will soar near 32 C (90 F) by Friday.However, not all areas across Europe will be influenced by summer sunshine. Areas from central to eastern Europe will be hit by round after round of wet weather.
Rounds of showers will extend from Poland and Ukraine down to the Balkans, producing on-and-off wet weather throughout the week.
“The southern end of this wet areas, across the Balakans and even into Greece, will be hit with the heaviest rain on Tuesday and Wednesday. Downpours could bring flash flooding into this area into midweek,” said
At the same time, a dip in the jet stream will allow cool air to filter into the region. The combination of clouds, showers and cooler air will make for a drastic change, compared to normal.
“On this side of the pattern, Eastern Europe is going to be 2-4 C (3-7 F) degrees cooler than normal for the final week of May,” Roys said. This includes cities like Kiev and Sofia.Roys added that the pocket of coldest air will settle across Ukraine and the Balkans, where several locations could have temperatures as much as 8 C (14 F) below normal for late May, particularly in the higher elevations and interior.Bucharest can expect highs near 19 C (67 F) instead of a normal afternoon temperature of 24 C (76 F) while Belgrade’s high temperature falls to 17 C (62 F), a chilling 7 C (13 F) below normal for late May.
reference-Accuweather