This is an Alfred v1 extension Updates are in progress, but not all are done yet.
Get current conditions and temperature plus tomorrow’s forecast
> weather 12345
Where ‘12345’ is your zip code. See API docs for alternate formats
Head on over to the Wunderground Weather API page and sign up and get an API key.
Once you have that key, go to Alfred Preferences, find the extension and replace the “API_KEY” placeholder in the command with your real key.