CDDFRS warns that fires could ignite and spread easily across open grass land in hot temperatures.
The weather warning, issued by the Met Office is for temperatures in excess of 28 degrees on Sunday and into next week. The service would like to ask the public to think twice before doing anything which involves a naked flame.
Emergency Response Group Manager Phil Innis commented: “"The key issues for us over the next few days are the warm, dry conditions coupled with any moderate to strong winds over the higher ground.
"Grass and heather on the ground will dry quite quickly in these conditions and when ignited can burn very fast with extreme fire intensity.
"Please exercise caution outdoors to avoid fires breaking out and think twice before using anything involving a naked flame."