Trying to link a variable within a label to a button

Question

I’m a newer developer and I’m trying to figure out how to navigate to a specific CollectionView based on a randomly generated variable within a label.

I created a button that generates a random weather pattern and within there is a weatherType variable that’s randomly generated and when the labels weatherType is “Sunny”, “Windy”, “Rainy”, or “Cloud” I want to be able to press another button that will take the user to a SunnyCollectionView, ‘RainCollectionView’,’WindCollectionView’, or ‘CloudCollectionView’.

class ViewController: UIViewController {

    @IBOutlet weak var firstLabel: UILabel!
    @IBOutlet weak var weatherInfoLabel: UILabel!
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }
    
    @IBAction func weatherButton(_ sender: Any) {
        let weatherVar = Weather()
        firstLabel.text = weatherVar.weatherInfo()
    }
    
    @IBAction func clothingCollectionButton() {
        let weatherVar = Weather()
        let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)

        if weatherVar.randomWeatherType == "Sunny" {
            let nextViewController = storyBoard.instantiateViewController(withIdentifier: "SunCollectionView") as! SunCollectionViewController
            self.present(nextViewController, animated:true, completion:nil)
        }
    }

From here, I’m able to use the weatherButton to get a random weather type but I want to use the clothingCollectionButton to take me to the next collection view based on that weather. When I’m simulating and I hit the clothingCollectionButton, it does not take me to the CollectionView based on the random weatherType within the label.

Could anyone help? What I have up is what I thought would work but it hasn’t.