Пасмурный день не мешает мне гулять в парке.

Because it describes день (day), and день is a masculine noun.

In Russian, adjectives must agree with the noun they describe in:

• gender
• number
• case

Here:

• день = masculine, singular, nominative
• so the adjective is пасмурный

Compare:

• пасмурный день = a cloudy day
• пасмурная погода = cloudy weather
• пасмурное утро = a cloudy morning

День is in the nominative singular because it is the subject of the sentence — the thing doing the action.

The sentence literally works like:

• Пасмурный день = the cloudy day
• не мешает = does not hinder / does not prevent
• мне = me
• гулять в парке = from walking in the park

So день is the thing that does not interfere, which makes it the subject.

Because the verb has to agree with the subject, which is пасмурный день.

The subject is:

• third person
• singular

So the verb is:

• мешает = he/she/it hinders, prevents

A quick comparison:

• я мешаю = I hinder
• ты мешаешь = you hinder
• он/она/оно мешает = he/she/it hinders
• они мешают = they hinder

Since день is singular, Russian uses мешает.

Because the verb мешать usually takes the dative case for the person affected.

A useful pattern is:

• мешать кому? = to bother / hinder whom?
• мешать делать что-то = to prevent someone from doing something

So:

• мне = to me
• not я = I

Examples:

• Ты мне мешаешь. = You’re bothering me / getting in my way.
• Шум мешает мне работать. = The noise prevents me from working.

So in your sentence, мне is correct because the cloudy day is not preventing me from walking.

Because after мешать, Russian often uses an infinitive to describe the action that is being prevented.

Pattern:

• что-то мешает кому-то делать что-то

So:

• Пасмурный день не мешает мне гулять в парке. = A cloudy day does not prevent me from walking in the park.

The infinitive гулять is like English to walk / to stroll.

This is very common in Russian:

• Дождь мешает мне спать. = The rain prevents me from sleeping.
• Музыка не мешает мне читать. = The music doesn’t prevent me from reading.

Гулять is the imperfective verb, and it fits best here because the sentence talks about the activity in a general way, not about one completed result.

• гулять = to walk, stroll, spend time walking
• погулять = to have a walk, walk for a while, often with a more bounded or one-time feeling

In this sentence, the meaning is general:

• a cloudy day does not stop me from walking in the park

So гулять is the natural choice.

If you said погулять, it would sound more like:

• the cloudy day doesn’t stop me from going for a walk

That can work in some contexts, but гулять is the more neutral and common choice here.

Because в парке expresses location — where the walking happens.

Russian uses:

• в + accusative for motion into a place
• в + prepositional for being in a place

Here, гулять means walking in the park, not going into the park.

So:

• в парк = into the park
• в парке = in the park

Compare:

• Я иду в парк. = I’m going to the park.
• Я гуляю в парке. = I’m walking in the park.

It is the prepositional case.

The basic form is:

• парк

After в when it means location, Russian uses the prepositional:

• в парке

So the noun changes:

• парк → в парке

This is a normal pattern:

• в доме = in the house
• в городе = in the city
• в саду = in the garden

Yes. Russian word order is flexible, though the original sentence is the most neutral and natural.

Neutral order:

• Пасмурный день не мешает мне гулять в парке.

You could also say:

• Мне не мешает гулять в парке пасмурный день.
• Гулять в парке мне не мешает пасмурный день.

These alternatives may shift the emphasis slightly:

• мне first can emphasize me
• гулять в парке first can emphasize the activity

But for a learner, the original order is the best model.

It often means to interfere, to bother, to get in the way, or to prevent, depending on context.

In this sentence, it means something like:

• does not prevent
• does not stop
• does not interfere with

Examples:

• Ты мне мешаешь. = You’re in my way / You’re bothering me.
• Шум мешает работать. = The noise interferes with working.
• Плохая погода не мешает нам отдыхать. = Bad weather doesn’t stop us from relaxing.

So the exact English translation changes depending on what sounds most natural.

Not exactly, but it can be close in meaning depending on context.

• пасмурный день literally means a cloudy day
• It names the day itself as a thing

So the sentence literally says:

• A cloudy day does not prevent me from walking in the park.

If you wanted something more like when it’s cloudy, Russian might use a different structure, for example:

• Когда пасмурно, я всё равно гуляю в парке. = When it’s cloudy, I still walk in the park.

Your sentence is more noun-based and slightly more formal or structured.

Because Russian has no articles.

So:

• пасмурный день can mean a cloudy day or the cloudy day
• the exact meaning depends on context

In this sentence, English usually uses:

• A cloudy day doesn’t prevent me from walking in the park.

But Russian does not need a word for a or the.

Yes, and it would be very natural.

Both are possible, but they feel slightly different:

• гулять в парке = to walk in the park
• гулять по парку = to walk around the park / through the park

So:

• в парке focuses more on the location
• по парку can suggest movement around within that space

In your sentence, в парке is perfectly correct and very natural.

It most naturally sounds general unless context makes it specific.

Because the verb is in the present tense:

• не мешает = does not prevent / doesn’t stop

Russian present tense can express:

• a general truth
• a usual habit
• a current situation

So without extra context, this sentence sounds like:

• cloudy weather is not a reason for me to stop walking in the park

If you wanted to make it clearly about one moment, context would usually do that.

Yes. Since мешать takes the dative, you would use dative pronouns.

For example:

• мне = to me
• тебе = to you
• ему = to him
• ей = to her
• нам = to us
• им = to them

Examples:

• Пасмурный день не мешает тебе гулять в парке.
• Пасмурный день не мешает нам гулять в парке.

So the structure stays the same; only the dative pronoun changes.