Folk bliver hjemme, når vejret er dårligt.

Folk is a very common Danish word meaning people in a general sense. It works a lot like English people when you mean people in general, not a specific group.

So:

• Folk bliver hjemme = People stay home
• Mennesker also means human beings / people, but it often sounds more formal or more literal.
• Menneskerne means the people / the human beings, so it refers to a specific group.
• De mennesker means those people / the people, also more specific.

In this sentence, Folk is the most natural general word.

Yes, bliver often means becomes, but in Danish it also appears in expressions where it means remains / stays.

So bliver hjemme means stays home or remains at home.

This is very common:

• Jeg bliver hjemme i dag. = I’m staying home today.
• Han blev i sengen. = He stayed in bed.

So in this sentence, bliver is not about changing into something. It means stay/remain.

Danish often distinguishes between:

• hjem = home as a direction, movement toward home
• hjemme = at home, location

Compare:

• Jeg går hjem. = I’m going home.
  (movement)
• Jeg er hjemme. = I’m at home.
  (location)

So:

• bliver hjemme = stay at home

Because the sentence is about location, hjemme is correct.

Here når means when.

• når is used for things that happen regularly, typically, or whenever something happens
• hvis means if and is more conditional

So:

• Folk bliver hjemme, når vejret er dårligt.
  = People stay home when the weather is bad.
  This suggests a general pattern.

If you said:

• Folk bliver hjemme, hvis vejret er dårligt.
  it would mean People stay home if the weather is bad, which sounds more like a condition in a specific situation.

Both can be possible in some contexts, but når fits well for a general truth or habitual situation.

Vejret means the weather. In Danish, general concepts that English often expresses with the can also take the definite form.

• vejr = weather (indefinite/basic form)
• vejret = the weather

In this sentence, Danish naturally says vejret for the weather.

This is similar to other common expressions:

• Solen skinner. = The sun is shining.
• Tiden går. = Time passes / The time passes.

So vejret er dårligt is the normal way to say the weather is bad.

Because dårligt is describing vejret, and vejret is a neuter singular noun.

Danish adjectives often change form depending on the noun:

• en dårlig dag = a bad day
  (dag is common gender)
• et dårligt vejr = bad weather
  (vejr is neuter)

Since vejret comes from et vejr, the adjective takes the neuter form dårligt.

So:

• vejret er dårligt = the weather is bad

This subordinate clause has normal Danish subordinate-clause word order:

• når = conjunction
• vejret = subject
• er = verb
• dårligt = adjective/complement

So:

• når vejret er dårligt = when the weather is bad

A useful thing to notice is that in Danish, subordinate clauses usually do not invert the subject and verb after a conjunction like når, fordi, hvis, etc.

Compare:

• Main clause: Vejret er dårligt.
• Subordinate clause: når vejret er dårligt

No inversion happens there.

Yes:

• Når vejret er dårligt, bliver folk hjemme.

This means the same thing.

But when the subordinate clause comes first, Danish uses inversion in the main clause:

• Når vejret er dårligt, bliver folk hjemme. not
• Når vejret er dårligt, folk bliver hjemme.

That is a very important Danish word-order rule: when something else comes first, the finite verb usually comes before the subject in the main clause.

Because Folk here is being used as a general plural noun meaning people in general.

English also often does this:

• People stay home not
• The people stay home unless you mean a specific group

Danish does the same:

• Folk bliver hjemme. = People stay home.

So no article is needed.

Grammatically, folk refers to multiple people, but Danish verbs do not change form for singular and plural the way English verbs sometimes do.

So:

• Jeg bliver
• han bliver
• folk bliver

The verb form bliver stays the same.

That means you do not need to worry about a special plural verb form here.

A careful approximation is:

folk bliver hjemme, når VAI-er er DOR-ligt

A few notes:

• bliver is often pronounced more like bli-ver or even quite reduced in fast speech
• hjemme sounds roughly like yem-meh
• vejret is often pronounced close to vai-er in everyday speech
• dårligt has a soft Danish d and a rounded vowel that may be hard for English speakers

If you want a more learner-friendly breakdown:

• Folk → like fohlk
• bliver → BLEE-ver / BLI-ver
• hjemme → YEM-meh
• når → roughly nor
• vejret → VAI-er
• er → usually a very weak air / uh
• dårligt → roughly DOR-lee(t), though the final consonant is not strongly pronounced in natural speech

It most naturally describes a general habit or typical behavior:

• People stay home when the weather is bad.

The use of Folk and når makes it sound like a general statement about what people usually do.

If you wanted a more specific situation, Danish would often make that clearer through context or by using more specific nouns or time expressions.

Yes, but not in the same grammatical role.

Here dårligt is an adjective form used with er to describe vejret:

• Vejret er dårligt. = The weather is bad.

But dårligt can also be an adverb in other sentences:

• Han sover dårligt. = He sleeps poorly.

So the form looks the same, but the function depends on the sentence. Here it clearly means bad because it describes the noun vejret.