Weather tomorrow: The India Meteorological Department (IMD) has forecast widespread rainfall activity across several parts of the country on Sunday, June 28, with heavy to extremely heavy rain expected in parts of eastern, northeastern, western and southern India. Thunderstorms accompanied by lightning and gusty winds are also likely in many states, while parts of Uttar Pradesh remain under a heatwave alert despite the advancing southwest monsoon.ALSO READ: She couldn’t eat properly for months, Faridabad doctors later removed a giant hairball from her stomachIMD weather forecast for June 28, SundayAccording to the IMD, extremely heavy rainfall is likely at isolated places over Sub-Himalayan West Bengal and Sikkim on Sunday. Meanwhile, Assam and Meghalaya are expected to receive heavy to very heavy rainfall, with rain activity remaining intense across much of the Northeast.ALSO READ: Best Proverb of the Day by Albert EinsteinHeavy rainfall is also likely over:Arunachal PradeshBiharChhattisgarhOdishaTelanganaCoastal Andhra PradeshCoastal KarnatakaKerala and MaheTamil NaduPuducherry and KaraikalKonkan and GoaNagalandManipurMizoramTripuraNorth Interior KarnatakaDelhi, Noida and Gurugram weather tomorrowResidents of Delhi-NCR may experience a change in weather conditions on Sunday. The IMD has forecast thunderstorms accompanied by lightning and gusty winds reaching up to 50 kmph across Delhi and nearby regions.Similar conditions are expected in parts of Haryana, Punjab and Uttarakhand, bringing temporary relief from recent warm and humid conditions.Northeast India under heavy rain watchThe Northeast is expected to remain one of the wettest regions of the country over the next few days. Heavy to very heavy rainfall is likely over Assam and Meghalaya, while Arunachal Pradesh, Nagaland, Manipur, Mizoram and Tripura are also under a heavy rain warning.The IMD officials have cautioned that isolated locations in Sub-Himalayan West Bengal and Sikkim could receive extremely heavy rainfall.Rain likely across western and southern statesThe southwest monsoon continues to stay active across western and southern India. Heavy rainfall is expected over Konkan and Goa, while thunderstorms with lightning and gusty winds are likely in parts of Maharashtra.Several southern states are also likely to receive significant rainfall, including:KeralaCoastal KarnatakaCoastal Andhra PradeshTelanganaTamil NaduPuducherryKaraikalIn Tamil Nadu, heavy rain has been forecast in multiple districts, including Chennai, Coimbatore, Madurai, Tirunelveli, Kanyakumari and the Nilgiris.Bihar, Odisha and Chhattisgarh likely to receive rainAcross eastern and central India, the IMD has predicted heavy rainfall over Bihar, Odisha and Chhattisgarh. Thunderstorms with lightning are also expected in several areas.Jharkhand may witness thundersqualls with wind speeds reaching 50–60 kmph, according to the weather department.Heatwave alert remains in Uttar PradeshEven as monsoon rains advance across the country, parts of Uttar Pradesh continue to battle extreme heat.The IMD has forecast:Heatwave conditions over west Uttar PradeshSevere heatwave conditions in isolated parts of east Uttar PradeshOdisha is also likely to experience hot and humid weather conditions.Southwest monsoon likely to advance furtherThe weather office said conditions remain favourable for the southwest monsoon to advance into additional parts of the country during the next three to four days.The monsoon is expected to move into:More areas of GujaratAdditional parts of Madhya PradeshRemaining regions of ChhattisgarhJharkhandBiharParts of Uttar PradeshUttarakhandWhat to expect in the coming daysThe IMD expects widespread rainfall activity to continue through early July across the Northeast, the west coast and several parts of peninsular India.Heavy rain is likely to persist over:Sub-Himalayan West Bengal and SikkimAssam and MeghalayaKonkan and GoaKerala and MaheCoastal KarnatakaWith the monsoon gradually advancing across northern and central India, more regions could see increased rainfall activity in the days ahead.FAQsWill it rain in Delhi on June 28?Yes. The IMD has forecast thunderstorms, lightning and gusty winds of up to 50 kmph in Delhi-NCR on Sunday.Which states are under a heavy rain alert?Assam, Meghalaya, Bihar, Odisha, Telangana, Kerala, Karnataka, Tamil Nadu, Andhra Pradesh, Chhattisgarh, Konkan and Goa are among the states likely to receive heavy rainfall.Where is extremely heavy rainfall expected?The IMD has forecast extremely heavy rainfall at isolated places over Sub-Himalayan West Bengal and Sikkim.Is there a heatwave alert for June 28?Yes. Heatwave conditions are expected in west Uttar Pradesh, while isolated parts of east Uttar Pradesh may continue to experience severe heatwave conditions.Will the southwest monsoon advance further?Yes. The IMD says conditions are favourable for the monsoon to advance into more parts of Gujarat, Madhya Pradesh, Uttar Pradesh, Uttarakhand, Bihar and Jharkhand over the next few days.