
wehen
to blow
To move as wind or a current of air.
Heute weht ein starker Wind aus Westen.
Today a strong wind is blowing from the west.
to blow / flutter / waft
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to blow
To move as wind or a current of air.
Heute weht ein starker Wind aus Westen.
Today a strong wind is blowing from the west.

to flutter
To move or flap in the wind. Often used for flags, hair, or light fabrics.
Die Fahne auf dem Schlossdach wehte im Wind.
The flag on the castle roof fluttered in the wind.

to waft
To be carried through the air as a scent or smell.
Ein herrlicher Duft von frisch gebackenem Brot wehte aus der Bäckerei.
A wonderful smell of freshly baked bread wafted from the bakery.
The subject of the sentence reveals the exact meaning. If the subject is 'der Wind' (the wind) or 'es' (it), it means 'to blow'. If it is a flag or hair, it means 'to flutter'. If it is a scent or smell, it means 'to spread' or 'to waft'.
Der Wind weht heute sehr stark.
The wind is blowing very strongly today.
When talking about the wind, 'wehen' (to blow) can be used impersonally with 'es' (it) as the subject. Alternatively, 'der Wind' (the wind) can also be the subject.
Mach die Fenster zu, es weht ziemlich kalt.
Close the windows; it's blowing pretty cold.
When a smell spreads, its origin is often given with the preposition 'aus' (out of/from) or 'von' (from). The typical pattern is: [smell] + wehen + [aus/von] + [source].
Der Geruch von Popcorn wehte aus dem Kino.
The smell of popcorn wafted from the movie theater.
to pull / move
Both words can be used for something that moves through the air. „Ziehen“ tends to emphasize the noticeable draft or the spreading, while „wehen“ describes moving wind or a scent carried through the air. For wind and scents, „wehen“ is usually the more natural choice.

Vom Garten weht der Duft der Rosen bis ins offene Fenster.
The scent of roses is wafting from the garden to the open window.
Durch das offene Fenster zieht ein kalter Luftzug ins Zimmer.
A cold draft is coming into the room through the open window.