Laravel CustomServiceProvider Class not found in package when required

I am having issues with a custom composer package I created to work for Laravel. I followed all the necessary steps others have said. First require the package, then composer-dumpautoload -o, and then add ServiceProvider to config/app.php. However, laravel cannot find the package ServiceProvider. Maybe my name spacing is off? Here is my code below along with the link to my github repo

https://github.com/InspiredByKeith/forecast-package

config/app.php

KeithRoye\Forecast\WeatherServiceProvider::class,

WeatherServiceProvider.php

 <?php

namespace KeithRoye\Forecast;

use Illuminate\Support\ServiceProvider;

class WeatherServiceProvider extends ServiceProvider

{
    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        $this->loadRoutesFrom(__DIR__.'/routes/web.php');
    }
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}

Composer.json of package

{
    "name": "keithroye/forecast",
    "description": "This package will allow users to obtain a 5 day weather forecast based upon the given zip code provided.",
    "type": "library",
    "require-dev": {
        "guzzlehttp/guzzle": "^6.3@dev"
    },
    "autoload-dev": {
        "psr-4": {
            "KeithRoye\\Forecast": "src/"
        }
    },

    "license": "MIT",
    "authors": [
        {
            "name": "Keith Roye",
            "email": "inspiredbykeith@gmail.com"
        }
    ],
    "minimum-stability": "dev"
}

Composer.json of Application

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": "^7.1.3",
        "fideloper/proxy": "^4.0",
        "keithroye/forecast": "dev-master",
        "laravel/framework": "5.7.*",
        "laravel/tinker": "^1.0"
    },
    "require-dev": {
        "beyondcode/laravel-dump-server": "^1.0",
        "filp/whoops": "^2.0",
        "fzaninotto/faker": "^1.4",
        "mockery/mockery": "^1.0",
        "nunomaduro/collision": "^2.0",
        "phpunit/phpunit": "^7.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate --ansi"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover --ansi"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true
}

via Chebli Mohamed