weather-scraper/scrapers/iLMeteo.js

const scrapePage = async (browser, url, isToday) => {
    let result = {}

    const page = await browser.newPage()
    await page.goto(url)

    const weatherTable = await page.locator('.weather_table').waitHandle()

    const startTime = isToday ? new Date().getHours() + 2 : 0
    const endTime = 24
    for (let i = startTime; i < endTime; i++) {
        const selector = isToday
            ? `.forecast_1h[data-dialogid="${i}"] td`
            : `.forecast_1h[data-dialogid="${1000 + i}"] td`

        const fields = await weatherTable.$$(selector)

        const temp = await fields[2].evaluate(el => parseFloat(el.textContent))
        const prec = await fields[3].evaluate(el => el.textContent)
        result[i] = { temp, prec }
    }

    await page.close()

    return result
}
const fetchILMeteoToday = async browser => {
    return await scrapePage(browser, 'https://www.ilmeteo.it/meteo/Pisa', true)
}
const fetchILMeteoTomorrow = async browser => {
    return await scrapePage(
        browser,
        'https://www.ilmeteo.it/meteo/Pisa/domani',
        false,
    )
}
const fetchILMeteoDayAfterTomorrow = async browser => {
    return await scrapePage(
        browser,
        'https://www.ilmeteo.it/meteo/Pisa/dopodomani',
        false,
    )
}
export default async browser => {
    const [today, tomorrow, dayAfterTomorrow] = await Promise.all([
        fetchILMeteoToday(browser),
        fetchILMeteoTomorrow(browser),
        fetchILMeteoDayAfterTomorrow(browser),
    ])

    return {
        today,
        tomorrow,
        dayAfterTomorrow,
    }
}