The national capital recorded maximum temperature at 35 degrees Celsius, a notch above the season's average while the minimum was 27 degrees Celsius.
Humidity levels oscillated between 78 and 60 per cent.
As heavy rains lashed parts of Himachal Pradesh, around 140 roads, including 68 in Mandi circle alone were closed due to landslides.
In Shimla district's Theog, two persons were killed and six injured when an HRTC building collapsed due to heavy rains while in Kangra district, a woman died when her kachha house collapsed, officials said.
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There was marginal increase in maximum temperatures and Una was the hottest recording a high of 33.2 degrees Celsius followed by Kangra 31.9 degrees Celsius, Bhuntar 31.2 degrees Celsius and Sundernagar 30.5 degrees Celsius.
Maximum temperatures at most places in Haryana today hovered below normal limits with Chandigarh, which received heavy showers last night, recording a high of 33.5 degrees Celsius.
However, maximum temperatures at most places in Punjab hovered a notch or two above normal limits, the MeT department said.
Amritsar in Punjab recorded a high of 35.4 degrees Celsius, two notches above normal while the mercury in Ludhiana and Patiala settled at 34.1 degrees Celsius and 32.8 degrees Celsius respectively.
Light rains occurred at isolated places in Rajasthan till this morning since yesterday. However, there was no rain during the day today.
In West Bengal, the state capital recorded 50 mm rains till 8.30 AM today since yesterday and witnessed light rainfall in the afternoon.
Rain and thunderstorm occurred at many places in Odisha with heavy rainfall at one or two places over north interior parts of the state.
In Bihar, Patna received 106.6 mm of rains while Tribeni and Balmiki in West Champaran district recorded 30 cm of rainfall since yesterday.
Purnea recorded the highest maximum temperature of 32.8 degrees Celsius, followed by 32.4 degrees Celsius in Bhagalpur, 31.2 degrees Celsius in Gaya and 30.2 degrees Celsius in Patna.
Parts of coastal Karnataka, Kerala, Lakshadweep, coastal Andhra Pradesh, Telangana and Tamil Nadu also witnessed rainfall.