It's just a fact of nature...

You can't see the stars through the clouds.  (or can you???)

The weather conditions at your observing site are one of the biggest factors that will affect your star gazing. But, clouds are not the only factor.... transparency, wind, humidity, etc... can all make a difference in the "seeing" conditions.

Another type of "weather" can also change your observing plans. SPACE WEATHER.

If you've ever seen an Aurora (the Northern Lights), you know what we mean.