Što kaže prognoza za sutra?

Yes. Što here means what and introduces the question: What does the forecast say for tomorrow?

In standard Croatian, što is the normal form here. In some varieties of speech, especially colloquial ones, you may also hear šta, but što is the safer form for learners to use.

Croatian uses kaže very naturally here, just like English can say What does the forecast say? Even though a forecast is not a person, the verb to say is used in an idiomatic way.

So prognoza kaže means something like:

• the forecast says
• the forecast predicts
• the forecast indicates

It is completely normal and natural.

Kaže is the 3rd person singular present tense form of the verb kazati or reći in the sense of to say.

Here it matches prognoza, which is singular:

• prognoza kaže = the forecast says

So the structure is:

• što = what
• kaže = says
• prognoza = the forecast

Even though English usually says What does the forecast say?, Croatian does not need a separate word like does.

Croatian word order is more flexible than English word order.

Both of these are possible:

• Što kaže prognoza za sutra?
• Što prognoza kaže za sutra?

The version with kaže prognoza sounds very natural and conversational. Croatian often moves words around for rhythm, focus, or style, while still keeping the meaning clear.

So although prognoza is the subject, it does not have to come before the verb.

Prognoza is in the nominative singular because it is the subject of the sentence: the forecast is the thing that says something.

The basic dictionary form is:

• prognoza = forecast

Since it is the subject, it stays in that basic form here.

Za sutra means for tomorrow.

In this sentence, it tells you what time period the forecast is about. So the meaning is not just What does the forecast say?, but specifically:

• What does the forecast say for tomorrow?

This is a very common Croatian pattern:

• za danas = for today
• za sutra = for tomorrow
• za vikend = for the weekend

Because za sutra means for tomorrow, which fits the idea of a forecast very well.

Compare:

• Što kaže prognoza za sutra? = What does the forecast say for tomorrow?
• Što kaže prognoza sutra? would sound like What will the forecast say tomorrow?, which changes the meaning.

So za sutra tells us the forecast concerns tomorrow's weather, not the time when the forecast itself is being spoken or checked.

In Croatian, prognoza by itself often already means weather forecast, especially from context.

If needed, you can make it more explicit:

• vremenska prognoza = weather forecast
• prognoza vremena = forecast of the weather / weather forecast

But in everyday speech, prognoza alone is usually perfectly clear.

Yes. Some natural alternatives are:

• Kakva je prognoza za sutra? = What is the forecast for tomorrow?
• Što prognoza kaže za sutra? = What does the forecast say for tomorrow?
• Kakvo će biti vrijeme sutra? = What will the weather be like tomorrow?

They are all useful, but Što kaže prognoza za sutra? sounds very natural in everyday conversation.

No. Croatian does not use an auxiliary like do/does to form this kind of question.

English:

• What does the forecast say?

Croatian:

• Što kaže prognoza?

The question is shown by the question word što and by intonation, not by adding a separate verb like does.

Croatian does not have articles like a and the.

So prognoza can mean:

• a forecast
• the forecast

The exact meaning comes from context. In this sentence, it naturally means the forecast.

A simple learner-friendly pronunciation guide would be:

• Što ≈ shto
• kaže ≈ KAH-zheh
• prognoza ≈ prog-NO-zah
• za ≈ zah
• sutra ≈ SOO-trah

A few useful sound notes:

• š sounds like sh in shoe
• ž sounds like the s in measure
• r is rolled or tapped more than in English

So the whole sentence sounds roughly like:

Shto KAH-zheh prog-NO-zah zah SOO-trah?

If you are learning standard Croatian, use što.

You may hear šta in casual speech or in some regional varieties, but što is the standard and safest option in writing and in careful speech.

So for a learner, this sentence is best as:

• Što kaže prognoza za sutra?

Yes, Croatian allows some flexibility. For example:

• Što kaže prognoza za sutra?
• Što za sutra kaže prognoza?

The first version is the most neutral and natural for most learners. Moving za sutra can add a slight sense of emphasis, but the basic meaning stays the same.

It is a very normal, everyday sentence. It sounds natural in conversation, for example when talking about plans, travel, or whether it will rain.

It is neither especially formal nor especially slangy, so it is a very useful pattern to learn.