Save the tomatos

Save the tomatos

I don't know how many of you are UK gardeners, but after having weeks of lovely sun and warm muggy nights, it's decided to rain. Cold, gray, very autumnal weather. My tomatos plants are all heavy with green fruit, but I fear black spot and other water related damage. Is there any way to prevent damage? The rain and cold is suppose to carry on for some time.
Regarding variegation

Regarding variegation

Aloe..

Aloe..

Sad looking lilac bushes

Sad looking lilac bushes

“Mutant” daylily?

“Mutant” daylily?

Tulips again

Tulips again

A kitchen garden – at last!

A kitchen garden – at last!