At present, Montana and Colorado are the two states that have the most FAA Weather Cameras, outside of Alaska. This is because those two states have partnered with the FAA to install cameras in those states, ie: The State Aeronautics Divisions are paying most of the costs of purchasing the systems and maintaining them.
Idaho has quite a few cameras, but I don't think any of them are actual FAA Weather Cams. Some were installed and operated by the State, some by Idaho Pilots, some by lodges, etc.
The FAA Weather Camera program in the lower 48 is vastly different than the one in Alaska, at least in who pays for the cameras and the continued operation. That is changing some....the FAA is now offering to fund SOME cameras in the Lower 48 states in a cooperative program.
That said, Montana and Colorado seem to be the only states so far that have really bought in to the program. Some of our cameras are sponsored also. The medevac community loves them because they can nearly always get almost instant weather information for some of the more remote hi line communities, when they get a request for medevac in the middle of the night. Otherwise, they often have to roust the airport manager for information.....and they're not always available.
Last fall, I was returning to Bozeman from Lewistown in my plane. It was windy, and snowy. I looked at Bozeman Pass cameras and diverted to the north, where I had a smooth (but VERY slow) trip, in good visibility. Pass was not just ugly, it was closed.
I'm a big fan, having used the prototype FAA Weather Cams in central Alaska, and strongly supported the program as it grew in AK.
Pilots in the Lower 48 are a little slower to buy into the program it seems.....weather reporting stations are closer together here, and old habits are hard to lose. But, these weather cameras offer more data than any AWOS/ASOS.
Trying to get at least one set of cameras in a back country airport in MT. FAA is supposedly evaluating the Starlink system as a data source for these things....much cheaper service than other remote options.
Take a look at the Montana and Colorado Cameras, and consider the information available there. And, btw, if you're fairly low, your smart phone will download the data.
MTV