Extreme heat and dry conditions spark 36 fires in Sydney and NSW, with 170 firefighters responding amid high fire danger.

Sydney and New South Wales face extreme fire danger on October 21, 2025, as soaring temperatures and dry conditions fuel 36 active fires, nine of which remain uncontained. No emergency warnings are in effect, but 170 firefighters are deployed to combat the blazes amid forecasts of record-breaking heat. Authorities urge residents to stay vigilant, prepare for disruptions, and follow safety guidelines due to hazardous fire conditions.