The monsoon this year, as yet on 24th.Aug, is performing well overall, with only 1% deficient in India on the whole. The only deficient areas, as expected are Tamil Nadu and the N.Eastern region.
At present the monsoon trough has shifted very much to the north, at the foothills of the Himalayas. This means, the rains will be restricted to the Eastern region and Northern areas of India.Since the western end of the trough is far north, the excess rain areas of Gujarat and Rajasthan may get relief from rain. Now, another low is expected in the bay around 28th Aug. This means, that the eastern end of the trough will move southwards, and bring rain to east India. As this is the fag end of the monsoon season, the system may should move towards the northwest and not gain too much energy before dissipating in the monsoon trough around the east M.P. area. This low, will only prolong the widhrawal process which begins from West Rajasthan on 1st Sept. As this fresh low vanishes, the "aloft" low now over Central Asia will slowly drift down, and the season in far Northern areas start changing.
Mumbai will have passing showers for a few days, with slight increase in the showers next week.
Something away from the weather.
We have all been reading about the "Mars Phenomena" on the 28th Aug.
Well, more than Mars, I think what would be a better spectacle worth watching is the proximity of Venus and Saturn. Check it on this site.