Blustery means windy in strong, gusty bursts. A blustery day, blustery showers, blustery and cold.
The gusting is what the word adds, since a blustery day is one where the wind comes and goes rather than blowing steadily. It belongs to forecasts, and it also describes a person who talks loudly with nothing behind it.
1adjectiveblusteryWindy in strong, gusty bursts.
“It was a blustery autumn day, and leaves were blowing everywhere.”
blustery is a quality.
Middle Low German
blüstren
Middle English
blusteren — to wander about aimlessly
English
bluster
English, today
blustery
From bluster + -y. bluster comes from Middle English blusteren (“to wander about aimlessly”); however, apparently picking up the modern sense from Middle Low German blüstren “to blow violently”; compare later Low German blustern, blistern. Related to blow, blast. Compare also stq bloasje (“to blow”), bruusje (“to bluster”).
Etymology from Wiktionary, CC BY-SA