Sådant väder gör henne trött, men barnen vill ändå gå ut.

It means such weather, weather like that, or more naturally in many contexts, that kind of weather.

So sådant väder does not point to one specific weather event only; it refers to a type of weather.

Because väder is an ett-word in Swedish.

The forms are:

• sådan
  • singular en-word
• sådant
  • singular ett-word
• sådana
  • plural

Since väder is grammatically neuter (ett väder), Swedish uses sådant.

Because väder is often treated like an uncountable or general noun, similar to weather in English.

So sådant väder is the natural way to say such weather.

You may sometimes see ett sådant väder, but that sounds more like talking about one particular instance. In this sentence, the more general sådant väder is the idiomatic choice.

It works very much like English makes her tired.

Breakdown:

• gör = makes
• henne = her
• trött = tired

So the pattern is:

göra + object + adjective

Examples:

• Det gör mig glad. = It makes me happy.
• Sådant väder gör henne trött. = Such weather makes her tired.

Because henne is the object form of hon.

• hon = she
• henne = her

In this sentence, she is not the subject of gör; she is the person affected by it. So Swedish uses henne.

Compare:

• Hon är trött. = She is tired.
• Vädret gör henne trött. = The weather makes her tired.

Because it describes one person.

Here, trött is the singular form used with henne.
If the sentence referred to several people, Swedish would use trötta.

Compare:

• Det gör henne trött. = It makes her tired.
• Det gör dem trötta. = It makes them tired.

So trött matches a singular person, while trötta is plural.

Ändå means still, all the same, or nevertheless.

It adds the idea that the second part happens despite the first part.

So the meaning is:

• The weather makes her tired,
• but the children still want to go out anyway.

It emphasizes contrast and persistence.

Because gå ut is a very common Swedish verb phrase meaning:

• go out
• go outside

Here:

• gå = go / walk
• ut = out

Together they function as a unit. This is similar to English phrasal verbs.

Examples:

• Vi vill gå ut. = We want to go outside.
• Hon gick ut tidigt. = She went out early.

Because Swedish main clauses normally follow the V2 rule: the finite verb comes in the second position.

Here the subject comes first:

• barnen = first position
• vill = second position

The sentence adverb ändå usually comes after the finite verb in a main clause:

• barnen vill ändå gå ut

Not:

• barnen ändå vill gå ut

If you move ändå to the front, then the verb must still stay second:

• Ändå vill barnen gå ut.

Because barnen means the children, referring to a specific group of children.

• barn = children / child depending on context
• barnen = the children

In this sentence, it sounds like we already know which children are being talked about, so the definite form barnen is used.

Men means but.

It connects two main clauses and shows contrast:

• Sådant väder gör henne trött
• men barnen vill ändå gå ut

So the idea is: one fact is true, but another, contrasting fact is also true.

Yes, it is natural and helpful here because the sentence joins two full clauses:

• Sådant väder gör henne trött
• barnen vill ändå gå ut

In Swedish, commas are often used a bit less rigidly than in English, but before men in a sentence like this, a comma is very common and clear. It helps separate the two contrasting ideas.