Rain in Summer

Great swathes of black across the sky,
Very slowly passing by.
They grow in size and depths of hue,
Driving out all signs of blue.
Quite soon the sky is mostly black,
With shades of grey behind its back.
A breeze gets up and whips around,
Swirling leaves up off the ground.
Some early drops announce the news
The weather is about to choose
With no feeling of regret
To change its stance from dry to wet.
The heavens open; the rain pours down,
In the country, in the town,
Where the people rush to find
Some shelter; clothes are not designed
To be out in the pouring rain
Which from the sky descends again.
Soon the pavements are awash,
Every step's a squelching splosh,
And then it stops; the sun comes out,
In half an hour there's nought about,
To show for that tremendous storm -
It's back once more to the muggy norm.