The India Meteorological Department (IMD) has forecast widespread rainfall across West Bengal over the next seven days, with north Bengal likely to witness heavy to very heavy rain until August 6. Several districts in south Bengal are also expected to receive moderate to heavy rainfall, accompanied by thunderstorms, lightning and gusty winds reaching speeds of 30-40 kmph on multiple days. The weather department has urged residents in vulnerable areas to remain cautious as intense monsoon activity is expected to persist through the week.North Bengal weather forecast (August 1–7)North Bengal is expected to witness active monsoon conditions throughout the week, with light to moderate rain forecast in all districts from August 1 to 7. The IMD has issued heavy to very heavy rainfall warnings for Darjeeling, Jalpaiguri, Alipurduar, Kalimpong and Cooch Behar on multiple days between August 1 and 5. Heavy rain is also likely in North Dinajpur on August 2 and 4, while Jalpaiguri, Alipurduar and Cooch Behar may continue to receive heavy showers on August 6. Rainfall activity is expected to ease slightly on August 7, with no heavy rain warning in place.DateRainfall forecastDistricts under heavy rain alertAug 1Light to moderate rain at most placesVery heavy rain (7–20 cm): Darjeeling, Jalpaiguri, Alipurduar; Heavy rain (7–11 cm): Kalimpong, Cooch BeharAug 2Light to moderate rain at most placesVery heavy rain: Darjeeling, Jalpaiguri, Kalimpong, Alipurduar, Cooch Behar; Heavy rain: North DinajpurAug 3Light to moderate rain at most placesVery heavy rain: Darjeeling, Jalpaiguri, Kalimpong, Alipurduar, Cooch BeharAug 4Light to moderate rain at most placesVery heavy rain: Darjeeling, Jalpaiguri, Alipurduar, Cooch Behar; Heavy rain: North Dinajpur, KalimpongAug 5Light to moderate rain at most placesVery heavy rain: Darjeeling, Jalpaiguri, Kalimpong, Alipurduar, Cooch Behar; Heavy rain: Remaining North Bengal districtsAug 6Light to moderate rain at most placesHeavy rain: Jalpaiguri, Alipurduar, Cooch BeharAug 7Light to moderate rain at many placesNo heavy rain warningSouth Bengal weather forecast (August 1–7)South Bengal is likely to experience light to moderate rainfall across most districts over the next seven days, accompanied by thunderstorms, lightning and gusty winds of 30-40 kmph on several days. Heavy rain has been forecast for North 24 Parganas, Nadia and Murshidabad on August 3; Birbhum, Murshidabad and East Burdwan on August 5; North 24 Parganas, East & West Burdwan, Murshidabad and Birbhum on August 6; and South 24 Parganas, East & West Midnapore, Bankura, Purulia and Jhargram on August 7. Thunderstorm activity is expected across all districts on August 3 and 4.DateRainfall forecastWarningsAug 1Light to moderate rain at many placesThunderstorms, lightning and 30–40 kmph winds over North & South 24 Parganas, East Midnapore, Nadia, Murshidabad and BirbhumAug 2Light to moderate rain at many placesThunderstorms, lightning and 30–40 kmph winds over South 24 Parganas, East & West Midnapore, Bankura, East & West Burdwan, Murshidabad and BirbhumAug 3Light to moderate rain at many placesHeavy rain: North 24 Parganas, Nadia and Murshidabad; Thunderstorms and lightning across all districtsAug 4Light to moderate rain at most placesThunderstorms and lightning across all districtsAug 5Light to moderate rain at most placesHeavy rain: Birbhum, Murshidabad and East BurdwanAug 6Light to moderate rain at most placesHeavy rain: North 24 Parganas, East & West Burdwan, Murshidabad and BirbhumAug 7Light to moderate rain at most placesHeavy rain: South 24 Parganas, East & West Midnapore, Bankura, Purulia and Jhargram