Does the weather on Earth have anything to do with the planet Mercury?

Answer 1

The short answer is yes.

That is because everything in the Universe affects everything else in the Universe, although almost always unmeasurably. So the general, theoretical answer to "Does A have anything to do with B?" is always yes, no matter what A and B are.

Practically speaking, though, the influence from Mercury on the weather on Earth is extremely, extremely small, and it would never be taken into account in the weather forecast calculations.

According to chaos theory, though, a butterfly in Asia could start a hurricane in America. So, in theory, the extremely small gravitational pull from Mercury, or even the very faint light reflecting from Mercury, could in some clever way cause something similar to happen. But it would definitely be completely unmeasurable and could never be determined to come from Mercury.

Another theoretical example on how Mercury could affect the weather on Earth is if a person started believing that planet Mercury was his or her God and started bowing in the direction of it. That bowing could, again according to chaos theory, start a hurricane, just as the butterfly's wings could. And the direction of the bowing could determine whether the hurricane started or not. Therefore, the position of Mercury could start a hurricane on Earth. Of course this is all theory, and again, it could never be determined that Mercury had anything at all to do with the start of the hurricane.