Heavy rains lashed Lucknow and some parts of eastern Uttar Pradesh early Wednesday.
The rains brought down temperature and ended a brief spell of hot and humid weather over the last one week.
Officials of the regional Met department said the rains would continue through out the day.
Due to the rains that started around 4 in the morning and continued for almost three hours, severe water logging has also been reported from the old city and many low lying areas.
At many places, including posh Gomtinagar, the choked drains overflowed on to the roads, leading to problems for school going children and their parents.
With not much rains in the past two years, the city municipal corporation seemingly has not done enough to clean the drains and big nullahs, owing to which slight rains are leading to severe water logging, even in areas which never had the problem.
Officials at the Municipal Corporation admit of poor cleaning up but add that operations were underway to unclog the big drains.
At many schools the attendance also dipped to 40-50 per cent owing to the rains at school timings. Early morning flights were delayed briefly.