Temperatures could reach 40C as the Met Office activates the country's first red extreme heat warning, covering 14 local authority areas from Wednesday to Thursday.
Yellow weather alert in place from noon until midnight with up to 30mm of rain predicted in some areas.
Met Office issues yellow warning for ice covering most of Wales from Sunday night through Monday morning, with fog adding to hazardous conditions.
Yellow weather warnings issued as third major storm this month brings powerful winds and torrential rain to Wales on Tuesday.
Met Office warns of snow and ice across 15 Welsh council areas on Friday with up to 5cm expected on higher ground and travel disruption likely.
Met Office issues amber and yellow warnings as more than 100mm of rain expected across parts of Wales following Storm Bram.
Met Office warns of flooding and transport disruptions across Ceredigion, Conwy, Denbighshire, Gwynedd, and Powys with up to 100mm of rain expected.
Yellow warnings in place as Storm Bram brings 70mph gusts and heavy rainfall to Wales, with flooding and transport disruption expected.
A 24-hour yellow weather warning for rain has been issued for 16 areas of Wales from Monday 6pm to Tuesday 6pm, with potential for flooding and travel disruption.
Met Office warns of flooding risk and travel disruption as heavy rain is forecast across south and mid Wales on Tuesday.
Met Office issues dual weather warnings as powerful Storm Éowyn approaches Wales, bringing potential "weather bomb" conditions and widespread disruption.
Yellow weather warning issued for Wales as Met Office predicts significant snowfall and potential disruption from Saturday through Monday, with up to 30cm expected on higher ground.