If you're trying to make your own forecasts, weather proverbs will not generally be applicable. Only those which are found to be based upon scientific fact and principles are worth considering. Proverbs pertaining to the condition of the atmosphere, the appearance of the sky, the character and movements of the clouds, and the direction and force of the winds are, for the most part, all that are worth testing out for any particular locality. Proverbs pertaining to the actions of birds and animals are of little value. Changes in the atmospheric conditions may be responsible for their peculiar actions, but they are affected by the weather which is taking place and not by weather to come.
Sayings pertaining to forecasts for coming seasons are entirely without foundation.
For example, peculiar growths and developments in vegetation are the results of weather conditions that have passed and have no connection with those to come. The character of the muskrat's house or the beaver's dam is the direct result of the stage of the water at the time the structure was made. Everything savoring of astrology, or the mysterious in general, should be entirely rejected. The trouble with weather proverbs is not so much that they're all wrong, but that they're not all right for all times in all places. Some of the ones we hear in New England originated thousands of years ago in northern Africa near the Mediterranean Sea where they could be heard and repeated and at last recorded by the writers of the Old Testament.