Why is the predicted high temp for my area shown 11 degrees different at Yahoo weather and Google weather?

I entered city and state exactly the same, and narrowed the area as much as possible. I could understand it being 2 o3 degrees different, but 11 degrees? It's like that frequently. What's up with that?|||I don't know the answer of your question. I googled but I couldn't find any clear answer for you. Sorry! Hope others can help you.|||It's because Google might use a different source of weather information than Yahoo does. Personally I would use weather.gov for weather forecasts.