Today: Delhi air severe by evening, Mumbai and Chennai hot

Delhi: air quality worsens by 18:00

Delhi's daily air quality category is Severely Polluted for today. Hourly readings show Moderately Polluted at 06:00, 09:00, 12:00 and 15:00, then Severely Polluted at 18:00 and 21:00.

The weather is Sunny, with a high of 34 °C and a low of 23 °C. Temperatures are forecast at 24 °C at 06:00, 27 °C at 09:00, 33 °C at 12:00 and 34 °C at 15:00. Precipitation probability is 10 %, with 0 mm expected. The Activity Index is Poor and the Heatstroke Index (WBGT) is Attention.

Mumbai and Chennai: heatstroke risk is high

Mumbai's weather condition is Extreme Heat today, with a high of 36 °C and a low of 28 °C. Hourly forecasts show 32 °C at 09:00, then 36 °C at both 12:00 and 15:00, each labelled Extreme Heat, and 33 °C at 18:00 under Clear skies. The Heatstroke Index (WBGT) is Severe caution, the Activity Index is Poor and air quality is Moderately Polluted.

Chennai is Sunny, with a high of 33 °C and a low of 28 °C. Its Heatstroke Index (WBGT) is also Severe caution and the Activity Index is Poor, while air quality is Good and the Driving Index is Excellent.

Lucknow: milder at 30 °C with fair activity

Lucknow is forecast to be Sunny today, with a high of 30 °C and a low of 23 °C. Hourly forecasts show 23 °C under Thin clouds at 06:00, 27 °C at 09:00 and 30 °C at 12:00. Precipitation probability is 10 %, with 0 mm expected.

Air quality is Moderately Polluted for the day. Hourly forecasts show Lightly Polluted at 12:00, 15:00 and 18:00, and Moderately Polluted at 21:00. The Heatstroke Index (WBGT) is Attention and the Activity Index is Fair, a better rating than the Poor Activity Index in Delhi, Mumbai and Chennai.