Hi! I see you're having trouble getting the Yahoo Weather app to show weather for Des Moines, Iowa. Let's get this sorted out together.

To start, can you tell me if you’ve already tried adding Des Moines, Iowa as a location manually in the app? Sometimes the app might not auto-detect it, so adding the city ensures you get the right data.

Here’s a step-by-step guide to check and add the location:

1. Open the Yahoo Weather app.
2. Look for the "Manage Locations" option—usually accessible via a menu or a location icon.
3. Search for "Des Moines, Iowa".
4. Select it from the list and add it as a location to follow.

If you already have Des Moines added and it’s still not showing the weather, the next thing we can try is to refresh the app data:

1. Close the Yahoo Weather app completely.
2. Restart your device to clear any stuck processes.
3. Open the app again and check if the weather updates.

Make sure also that your app is updated to the latest version via the Microsoft Store or the source you installed it from. Sometimes bugs fixed in updates can resolve these display issues.

Since you're on Windows 10, another point to check is whether your location settings on Windows are enabled and if Yahoo Weather has permission to access location services. Here's how to verify:

1. Go to your Windows "Settings".
2. Select "Privacy".
3. Choose "Location" from the sidebar.
4. Make sure location services are turned on.
5. Scroll down to ensure that Yahoo Weather is allowed to access location data.

If all that checks out and Des Moines weather still won’t show, let me know if the app shows any error messages or if it just won’t load data. We can dig deeper then, maybe explore clearing app cache or reinstalling the app.

Does this help? Have you tried any of these steps already? Let me know!