IMD forecasts heatwave for Delhi, minimum temp 2.7 deg C above normal

- April 23, 2026
| By : PTI |

Minimum temperature rises above normal as IMD warns of a three-day heatwave, with mercury likely to touch 42°C and air quality remaining in the ‘moderate’ range

Delhi: The national capital on Thursday recorded a minimum temperature of 25.4 degrees Celsius, 2.7 notches above the season’s average, according to the India Meteorological Department.

The weather office has forecast a heatwave for Thursday, Friday and Saturday, with the maximum temperature expected to settle around the 42-degree Celsius mark.

A heatwave is declared when the maximum temperature departure is 4.5 or 6.4 degrees Celsius from normal, or the actual temperature breaches the 45-degree Celsius mark.

The air quality in the capital was recorded in the ‘moderate’ category at 9 am on Thursday, with an Air Quality Index (AQI) reading of 191, Central Pollution Control Board (CPCB) data showed.

The CPCB classifies an AQI between zero and 50 as ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 as ‘severe’.