This is Joyce Roach at Horned Toad, Texas on a hot and humid July 30th. Guess there's no way to predict the weather, but I found some sure-fire methods in The Best of The Old Farmer's Almanac which you can get at Barnes and Noble. Some trust the animals and birds.
Sheep run to and fro, jump from the ground, and fight in their gambols before a change of weather.
When cattle lie out, or pigs lie down for the night without covering themselves with litter, fine weather will continue. Asses hanging their ears forward or rubbing themselves against walls or trees prognosticate rain. Cats remaining indoors, devoid of vivacity, forecast wet or windy weather. Frogs croaking more than usual, moles throwing up more soil than usual, toads in great numbers, and oxen licking their forefeet all mean rain. Owls hooting and screeching during bad weather foretell fine weather near at hand.