In both v1.4 and 1.5 (unmodded) I have played, the weather is among the most interesting parts of the game... Clear, sunny skies, rain squalls, thuderstorms, fog with sea states from glassy sea to 3-5 foot swells...
While I'm at the plotting table, the deck watch reports a contact and I maneuver into a firing position, but am unable to identify it until it's REALLY CLOSE due to heavy rain or fog. Adds a bit o' spice to the game!