Met Office bank holiday weekend weather forecast with heavy rain and thunderstorms expected

WeatherWales weatherStrong winds are also possible across the weekend11:19, 25 Aug 2026Heavy rain and thunderstorms are expected to replace the sunshine and blue skies Wales has enjoyed in recent bank holidays as this weekend will feel like autumn has come early.‌The bank holiday in late May brought us the first of many heatwaves, but the weather is forecast to take a turn later this week.‌The summer weather may not be entirely behind us according to the Met Office as "some short-lived warm or hot spells are possible" in early September. But the late summer bank holiday on Monday, August 31, is expected to be wet across the UK.‌Two consecutive weather warnings have been issued this week for Wales as thunderstorms could cause flooding across the country on Wednesday and Thursday. For the bi