Met Éireann has issued yellow weather warnings across Ireland, initially for thunderstorms but downgraded to heavy rain warnings in most counties, including Donegal, Cavan, Monaghan, Leitrim, Roscommon, and Sligo, until 9pm. The warnings highlight risks of localized flooding, poor visibility, and difficult travel conditions. Most of Leinster and Waterford's warnings expire earlier at 6pm. Northern Ireland remains under a similar yellow rain warning until 9pm. Despite the reduction in thunderstorm risk, heavy rain and scattered showers continue nationwide, with some areas experiencing isolated thunderstorms. Temperatures are expected to reach up to 22°C, with humid conditions, mist, and fog, especially in the south. The weather is described as 'unsettled' and 'breezy,' with heavy showers forecast throughout the week. A heatwave is also predicted to return later in the week, with temperatures possibly hitting 30°C, and a forest fire alert issued in some areas. Overall, Ireland faces a mix of heavy rain, thunderstorms, and warm, humid conditions, with more unsettled weather expected before improvements next week.