Chennai is experiencing moderate rainfall today, October 19, 2025, with temperatures ranging between 25.7°C and 29.2°C amid overcast skies. The city recorded a moderate Air Quality Index (AQI-IN) of 92 yesterday, with conditions expected to persist due to high humidity levels of 78%.Light showers began in the morning, creating refreshing but humid conditions across the city. The maximum temperature will reach 29.2°C, while the minimum will stay at 25.7°C. Wind speeds average 15.1 km/h, with a 94% chance of precipitation, particularly intense after 3 PM.Yesterday's air quality measurements showed moderate pollution levels, with an AQI-IN of 92 and AQI-US of 114. The main pollutants included PM2.5 at 46 µg/m³, PM10 at 73 µg/m³, and elevated CO levels at 654 µg/m³.The current weather conditions suggest residents should carry umbrellas and masks when venturing outdoors. The heaviest rainfall is expected between 3 PM and 5 PM, making it advisable to avoid outdoor activities during these hours.Morning hours remain suitable for outdoor activities despite the drizzle. Evening conditions are expected to improve, making it appropriate for regular activities with necessary precautions.The week ahead shows varying weather patterns for Chennai. October 20 will see moderate rain with temperatures between 25.2°C and 29.8°C. October 21 expects patchy rain with similar temperature ranges.Heavy showers are forecast for October 22, bringing temperatures down to between 24.3°C and 25.4°C. October 23 will experience lighter rainfall with temperatures ranging from 23.6°C and 25.7°C.Weather conditions will improve from October 24, with temperatures rising to 29.7°C. October 25 will mark the week's warmest day with clear skies and temperatures reaching 31.9°C.The anticipated rainfall this week is expected to improve the city's air quality by clearing accumulated pollutants. These conditions may provide relief to residents who have been experiencing poor air quality recently.The current moderate air quality levels may cause mild respiratory discomfort for sensitive groups, particularly in areas with heavy traffic. The combination of rain and high humidity could affect how pollutants disperse in the atmosphere.This weather data has been sourced from AQI.in, providing residents with comprehensive information about both weather conditions and air quality measurements across Chennai.