Create a Weather Monitoring Dashboard with Next.js

This project involves building a Weather Monitoring Dashboard using NextJS. The dashboard allows users to check the current weather and forecast for a specific city, as well as an hourly forecast for the next few hours and a daily forecast for the next four days.

Output Preview: Let us have a look at how the final output will look like.

Prerequisites:

• NPM & NodeJS
• ReactJS
• NextJS
• JavaScript
• CSS

Approach to Create Weather Monitoring Dashboard with NextJS:

• Fetch current weather data using the OpenWeatherMap API based on geolocation or city search.
• Display current weather information including temperature, city name, and cloud conditions.
• Fetch hourly and daily forecasts for the specified location.
• Render hourly forecast data dynamically.
• Render daily forecast data dynamically.

Steps to Create the NextJS App:

Step 1: Set up a NextJS project and navigate to that project folder

npx create-next-app weather-monitoring-dashboard

Step 2: Navigate to the root directory of your project.

cd weather-monitoring-dashboard

Step 3: Install necessary dependencies (axios for making HTTP requests).

npm install axios

Project Structure:

• Create or replace index.js and _app.js of pages folder using following code
• generate your own api from openweathermap and replace it with index.js apikey
• create globals.css with the code given below inside styles

Example: Below is an example of building a weather monitoring dashboard with NextJS.

CSS

/* styles/global.css */

body {
    height: 100%;
    background: rgb(72, 37, 37);
    padding: 1rem 5rem;
    font-family: 'Roboto', sans-serif;
    text-transform: capitalize;
    /* background: linear-gradient(45deg, rgba(183, 204, 248, 0.717), rgba(7, 43, 127, 0.679)), url(); */
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: rgb(214, 147, 45);
    text-decoration: underline;
    font-family: 'Orbitron', sans-serif;
}

#input {
    font-size: 18px;
    padding: 5px 10px;
    outline: none;
    border: none;
    border-radius: 15px;
    background: aliceblue;
}

#search {
    background: none;
    padding: 5px 20px;
    color: aliceblue;
    outline: none;
    background: cadetblue;
    font-size: 17px;
    border-radius: 15px;
    cursor: pointer;
    border: none;
}

.weather {
    text-align: center;
    color: aliceblue;
}

#city {
    font-size: 30px;
}

/* .weather img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(240, 248, 255, 0.408);
  } */

#temperature {
    font-size: 50px;
    margin: 0;
    margin-left: 30px;
    margin-bottom: 10px;
}

.temp-box {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 30px 0;
}

#clouds {
    font-size: 20px;
    background: rgba(153, 205, 50, 0.778);
    padding: 2px 20px;
    border-radius: 15px;
}

main {
    display: grid;
    grid-column-gap: 25px;
    grid-template-columns: 1fr 5px 1fr;
    align-items: center;
    margin: 0 50px;
    color: white;
}

.next {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 10px 0;
}

.next p,
.next h3 {
    margin: 3px 0;
}

.forecstD {
    margin: 20px 50px;
    color: aliceblue;
}

.weekF {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.cast-header {
    color: aliceblue;
    background: rgba(254, 189, 132, 0.539);
    width: max-content;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 18px;
    margin-bottom: 5px;
}

.divider1,
.divider2 {
    background: rgba(254, 189, 132, 0.539);
    height: 200px;
    border-radius: 5px;
}

.divider2 {
    height: 5px;
    width: 30%;
    margin: 0 auto;
}

.time,
.date {
    color: rgb(254, 189, 132);
}

.desc {
    color: rgb(196, 255, 77);
}

Javascript

//pages/index.js
import { useState, useEffect } from 'react';
import axios from 'axios';
import { useRouter } from 'next/router';

const apikey = "feff206daa60b539abe8fae8f2ab7f29";

const Weather = () => {
    const router = useRouter();
    const [city, setCity] = useState('');
    const [weatherData, setWeatherData] = useState(null);

    useEffect(() => {
        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition((position) => {
                const { latitude, longitude } = position.coords;
                const url = `
http://api.openweathermap.org/data/2.5/weather?lat=${latitude}&lon=${longitude}&appid=${apikey}`;

                fetchWeatherData(url);
            });
        }
    }, []);

    const fetchWeatherData = async (url) => {
        try {
            const response = await axios.get(url);
            const data = response.data;
            console.log(data);
            weatherReport(data);
        } catch (error) {
            console.error('Error fetching weather data:', error);
        }
    };

    const searchByCity = async () => {
        try {
            const urlsearch = `http://api.openweathermap.org/data/2.5/weather?q=${city}&appid=${apikey}`;
            const response = await axios.get(urlsearch);
            const data = response.data;
            console.log(data);
            weatherReport(data);
        } catch (error) {
            console.error('Error fetching weather data:', error);
        }
        setCity('');
    };

    const weatherReport = async (data) => {
        const urlcast = `http://api.openweathermap.org/data/2.5/forecast?q=${data.name}&appid=${apikey}`;
        try {
            const response = await axios.get(urlcast);
            const forecast = response.data;
            console.log(forecast.city);
            hourForecast(forecast);
            dayForecast(forecast);

            console.log(data);
            document.getElementById('city').innerText = data.name + ', ' + data.sys.country;
            console.log(data.name, data.sys.country);

            console.log(Math.floor(data.main.temp - 273));
            document.getElementById('temperature').innerText = Math.floor(data.main.temp - 273) + ' °C';

            document.getElementById('clouds').innerText = data.weather[0].description;
            console.log(data.weather[0].description);

            let icon1 = data.weather[0].icon;
            let iconurl = "http://api.openweathermap.org/img/w/" + icon1 + ".png";
            document.getElementById('img').src = iconurl;
        } catch (error) {
            console.error('Error fetching forecast data:', error);
        }
    };

    const hourForecast = (forecast) => {
        document.querySelector('.templist').innerHTML = '';
        for (let i = 0; i < 5; i++) {
            var date = new Date(forecast.list[i].dt * 1000);
            console.log((date.toLocaleTimeString(
                undefined, 'Asia/Kolkata')).replace(':00', ''));

            let hourR = document.createElement('div');
            hourR.setAttribute('class', 'next');

            let div = document.createElement('div');
            let time = document.createElement('p');
            time.setAttribute('class', 'time');
            time.innerText = (date.toLocaleTimeString(
                undefined, 'Asia/Kolkata')).replace(':00', '');

            let temp = document.createElement('p');
            temp.innerText = Math.floor(
                (forecast.list[i].main.temp_max - 273)) + ' °C' + ' / ' +
                Math.floor((forecast.list[i].main.temp_min - 273)) + ' °C';

            div.appendChild(time);
            div.appendChild(temp);

            let desc = document.createElement('p');
            desc.setAttribute('class', 'desc');
            desc.innerText = forecast.list[i].weather[0].description;

            hourR.appendChild(div);
            hourR.appendChild(desc);
            document.querySelector('.templist').appendChild(hourR);
        }
    };

    const dayForecast = (forecast) => {
        document.querySelector('.weekF').innerHTML = '';
        for (let i = 8; i < forecast.list.length; i += 8) {
            console.log(forecast.list[i]);
            let div = document.createElement('div');
            div.setAttribute('class', 'dayF');

            let day = document.createElement('p');
            day.setAttribute('class', 'date');
            day.innerText = new Date(
                forecast.list[i].dt * 1000).toDateString(
                    undefined, 'Asia/Kolkata');
            div.appendChild(day);

            let temp = document.createElement('p');
            temp.innerText = Math.floor(
                (forecast.list[i].main.temp_max - 273)) + ' °C' + ' / ' +
                Math.floor((forecast.list[i].main.temp_min - 273)) + ' °C';
            div.appendChild(temp);

            let description = document.createElement('p');
            description.setAttribute('class', 'desc');
            description.innerText = forecast.list[i].weather[0].description;
            div.appendChild(description);

            document.querySelector('.weekF').appendChild(div);
        }
    };

    return (
        <div>
            <div className="header">
                <h1>WEATHER Monitoring Dashboard</h1>
                <div>
                    <input
                        type="text"
                        name=""
                        id="input"
                        placeholder="Enter city name"
                        value={city}
                        onChange={(e) => setCity(e.target.value)}
                    />
                    <button id="search" onClick={searchByCity}>
                        Search
                    </button>
                </div>
            </div>

            <main>
                <div className="weather">
                    <h2 id="city">Delhi,IN</h2>
                    <div className="temp-box">
                        <p id="temperature">26 °C</p>
                    </div>
                    <span id="clouds">Broken Clouds</span>
                </div>

                <div className="divider"></div>

                <div className="forecast">
                    <p className="cast-header">Upcoming forecast</p>
                    <div className="forecast-list templist">
                        {/* Hourly forecast will be rendered here */}
                    </div>
                </div>
            </main>

            <div className="divider-2"></div>

            <div className="forecast-2">
                <p className="cast-header"> Next 4 days forecast</p>
                <div className="forecast-list-2 weekF">
                    {/* Daily forecast will be rendered here */}
                </div>
            </div>
        </div>
    );
};

export default Weather;

Javascript

//pages/_app.js
import '../styles/globals.css';  // Adjust the path as needed

export default function App({ Component, pageProps }) {
    return <Component {...pageProps} />;
}

Start your application using the following command.

npm run dev

Output: Open your web browser and navigate to http://localhost:3000 to see your Weather Monitoring Dashboard in action.