Britons have a near-zero chance of seeing summer this side of July amid warnings for 10 days of torrential rain, thunder and dire temperatures. Stormy weather patterns will align around a misplaced jet stream this weekend to unleash a ‘beefy’ autumnal deluge. Although it will turn slightly milder after the weekend, the outlook into the end of June is for persistent heavy rain, wind and explosive storms. Jim Dale, meteorologist for British Weather Services, said: “There is no real break in this pattern for the time being. “Other than a couple of transient days, there is unlikely to be much of a…