How can I make my yahoo weather give me the weather at my location?

I live in Eastern Oregon and it always gives me the weather of Portland which is 5 hours away. I typed in the zip code of where I live, Baker City and made it my default location but every time I check the weather, it still gives me Portland's weather and I have to type in my zip code every time. How can I make it automatically show me the weather to where I live?