توقعات الجو بتقول فيه مطر.

Because in Arabic, non-human plurals are very often treated grammatically as feminine singular.

So even though توقعات means forecasts/predictions and is plural in meaning, Egyptian Arabic commonly uses a singular feminine verb with it:

• توقعات الجو بتقول...
• literally: The weather forecasts says...
• naturally: The weather forecast says...

This is very normal in Arabic and often feels strange to English speakers at first.

Literally, it means something like the weather predictions:

• توقعات = predictions / forecasts
• الجو = the weather / the atmosphere

Together, توقعات الجو is the natural way to say the weather forecast or weather predictions.

Even though it is literally plural, English often translates it as singular: the weather forecast.

In Egyptian Arabic, الجو is very common in everyday speech for the weather.

So:

• الجو = the weather, the air, the atmosphere
• الطقس = weather, but often sounds more formal or MSA-like

An Egyptian speaker will very naturally say:

• الجو عامل إيه؟ = How’s the weather?
• توقعات الجو = the weather forecast

So الجو is the everyday colloquial choice here.

بتقول means it says.

It comes from the verb قال / يقول = to say.

Here it refers back to توقعات الجو, so:

• توقعات الجو بتقول... = The weather forecast says...

In English, we also do this with things like:

• The report says...
• The forecast says...

So this use of say is very similar.

In Egyptian Arabic, the prefix بـ often marks the normal present / indicative form.

So:

• بتقول = it says / it is saying

Without بـ, تقول would usually not be the normal standalone present form in everyday Egyptian. It can appear in other structures, but in a simple sentence like this, بتقول is the expected colloquial form.

So بتقول is the natural Egyptian Arabic wording.

Here فيه means there is.

So:

• فيه مطر = there is rain

That gives the whole sentence:

• توقعات الجو بتقول فيه مطر
• The weather forecast says there is rain

In Egyptian Arabic, فيه is extremely common for expressing existence:

• فيه ناس برّه = There are people outside
• فيه مشكلة = There is a problem
• فيه مطر = There is rain

Yes. You could also say:

• توقعات الجو بتقول إن فيه مطر

That also means The weather forecast says there is rain.

In Egyptian Arabic, إن is often optional after verbs like say, especially in casual speech. So both are possible:

• بتقول فيه مطر
• بتقول إن فيه مطر

The version without إن sounds very natural and conversational.

Because مطر here is being used as a mass noun, like rain in English.

So:

• فيه مطر = there is rain

This is the normal way to say it.

Using المطر would usually sound more specific or less natural in this kind of basic weather statement. For a general forecast, مطر without the article is the usual choice.

Literally, فيه مطر means there is rain. But in a weather-forecast context, it often means something more like:

• there will be rain
• it’s going to rain
• rain is expected

So the exact English translation depends on context. Forecast language often uses a present-style form in Arabic where English might prefer a future-style translation.

Yes, it sounds natural.

It has a spoken Egyptian feel because of things like:

• الجو for weather
• بتقول with the بـ prefix
• فيه for there is
• omission of إن

It sounds like something someone might say in conversation when talking about the forecast.

A useful pronunciation guide is:

tawaʔʔoʿāt il-gaww bitʔūl fīh maṭar

A few notes:

• ق in Egyptian Arabic is often pronounced as a glottal stop ʔ
• الجو is commonly pronounced il-gaww or el-gaww
• بتقول sounds like bitʔūl
• فيه is fīh

You do not need a perfectly exact transliteration, but that will get you close.

Yes. There are several natural alternatives depending on what exactly the speaker wants to emphasize. For example:

• فيه مطر = There’s rain / It’s raining / Rain is expected
• الجو هيبقى فيه مطر = The weather will have rain / There will be rain
• واضح إن فيه مطر = It looks like there’s rain
• بيقولوا فيه مطر = They say there’s rain

But توقعات الجو بتقول فيه مطر specifically sounds like you are referring to the forecast.

Because the subject is already stated: توقعات الجو.

Arabic does not need an extra pronoun when the subject noun is already present. So:

• توقعات الجو بتقول... = The weather forecast says...

If you had already mentioned توقعات الجو earlier, then you might use a pronoun later to refer back to it. But in this sentence, the noun itself is enough.

Yes. That is very common.

Arabic is using a plural noun, توقعات = predictions/forecasts, but English often prefers the singular expression:

• the weather forecast

So a very natural translation is:

• The weather forecast says there’s rain.

Even though the Arabic is literally plural in one part, the natural English translation is often singular.