raggy
Foggy, misty (and typically cold), with drizzling rain.
obsolete
It looks a bit rough wi' lyin' out thoose raggy neets.
Where it comes from
From rag + -y, rag being a dialectal (northern England) word for a fog or mist with drizzling rain, related to dialectal Danish rag (“sea vapour”). Compare roke, rawk, from a word for smoke (compare Swedish rök (“smoke”)), which may or may not be related.
Adapted from the Wiktionary entry raggy (CC BY-SA 4.0).