Hope all is good with you.
Random weather generation in RPGs is often not done very well. Often it can be too random, or have jarring changes.
So, I thought I might share my Weather Hex Flower:
Here’s a link to a PDF: https://www.drivethrurpg.com/product/367072.
A Hex Flower is a bit like a random table but with a ‘memory’, so you can set the HF up so the changes in weather are more gradual/consistent, but still allow for some more oddball results.
Anyway, please check it out … it’s PWYW so it need not cost you anything.