The WS people here have been very accurate, although rainstorms haven't been very much in the reality. Those haven't been predicted, either.
I'm not sure of the size of the grid that they use for
local forecasts. My home is slightly outside of the one that seems best, anyway. Why do I discount it? It's just that if simple grafting is used, my address puts me in a square with most of the land 50 to 80 feet lower in elevation. So, I look at what is being said about 4 miles away, centered probably a good 8 miles distant

.
Then, the WS records what happens at their station which isn't in the center, either. Closer to my home but, they can't be everywhere.
An example of what they have been capable of: Saturday was predicted to be the hottest day of last week. Early on, they had it at 100°f. Then, it was predicted to be 99°. By Thursday, they had Saturday at 98°.

I'm thinking that they are splitting hairs but that's characteristic

. Saturday morning, I check the thermometer and it is 59°. Now, doubt creeps in. ¿How are we gonna go from 59° to 98°?
Mid-afternoon, the official thermometer is still a few degrees short. I head out to water some plants. Back under the deck roof I'm taking off my shoes thinking, this air is really hot! Came in and told DW, "it must be 100 degrees out there!"
Check the WS. Nope, 98°.

Steve
BTW. if the centigrade scale was being used, i'd need to cut them even more slack 