June was a month of two halves, beginning with unsettled and relatively cool conditions before transitioning to a hot, dry period later in the month. Rare red warnings for extreme heat were issued on three consecutive days, and a new provisional UK June temperature record of 37.7°C was set on the 26th at Lingwood (Norfolk). Rainfall was above average across the UK overall (117% of average), although there were marked regional contrasts. River flows were above normal in north-west UK and south Wales but elsewhere were generally normal or below, with notably low flows in eastern Scotland and East Anglia. Reservoir stocks for England & Wales remained close to average overall, although some impoundments registered more than 10% below average, including Wimbleball, Clatworthy and East Lothian (16%, 13% and 12% below average, respectively). Groundwater levels continued their seasonal recession during June and were predominantly in the normal range or below across major aquifers by month-end. By late June, parts of the EA’s Anglian Area had moved into Prolonged Dry Weather status, while the Scottish Tyne was classified as experiencing Moderate Scarcity by SEPA and much of eastern Scotland was under Alert or Early Warning conditions. While the water resources position at month-end remained broadly favourable at the national scale, the sustained hot, dry weather in late June (and early July) has increased water demand and accelerated declines in river flows and soil moisture across much of the country. Unless conditions become unseasonably wet, further declines and increased pressure on water resources can be expected through the rest of summer. The latest UK Hydrological Outlook favours normal to below normal river flows in eastern Scotland, south Wales, and central, southern, and eastern England over the next three months.