Mumbai experienced cool weather on Saturday with minimum temperatures around 17.4°C in Santacruz and 20.7°C in Colaba. However, the city's air quality worsened, with the overall AQI reaching 136. Chembur recorded a 'poor' AQI of 253, and other areas like Bandra Kurla Complex and Kandivali also showed elevated pollution levels. No significant temperature changes are expected in the coming days.