Not the forecast you were expecting... ie is it significantly too hot or cold, or not showing the extremes of the day?
If your location is near the ocean/bay it may be in a weather model square located primarily over the water. Select another spot just a little further inland and it should perform much better.
One example of this is Perth, 10km inland from the ocean. 'Perth, WA' can be too cool as it thinks it is over the water, while 'East Perth, WA' shows the true heat in mid summer:
This also occurs when the model doesn't have the right elevation. See alpine snow forecasts for more.
If this doesn't work for you, please contact me and I'll see if I can make changes to the location for you.