When the glow-worm glows, dry hot weather follows.
Gossamer.
Gossamer (the fine web of a certain species of spider) is said when abundant in the air to afford a sign of a fine autumn.
Gnats.
Gnats flying in a vortex in the beams of the sun, fair weather will follow; when they frisk about more wildly increasing heat is indicated; when they seek the shade and bite more frequently, the signs are of coming rain.
Gnats in October are a sign of long, fair weather.
Many gnats in spring indicate that the autumn will be warm.
If gnats fly in large numbers, the weather will be fine.
If gnats, flies, &c., bite sharper than usual, expect rain.
When gnats dance in February the husbandman becomes a beggar.