Monday marks the first day of meteorological summer, and we’re now just three weeks away from the official start of the season, which arrives with the solstice on June 21. After the exceptional spell of heat that swept across the UK just last week, many of you may be wondering when the next period of settled, warm weather will arrive. On May 25, Scotland recorded its highest temperature of the year so far, with Floors Castle in the Borders reaching 28C.