VeteransToday.com is a extremsit anti-Zionist site. Of course everything on their website - especially about science - is and should be called into question.
Climate modification is not a secret military technology. It is absolutely public - there are probably tens if not hundreds of documentaries about the technology. The National Academy of Sciences is not "elitist" in any way. This is being treated like a conspiracy theory because that's exactly what it is.
Meteorologists make educated guesses based on the scientific data available to them. An educated guess turning out wrong, isn't the same thing as a lie. A lie is when you say something that you know isn't true.
Some weather people are lying. For example, they will never report a 50% chance of rain; they'll report either 40% or 60%, since nobody would believe exactly 50%. Likewise, in case of doubt, they'll rather predict rain over no rain, since people are happy if they expected rain and there is none, but they're upset if they expected no rain and it does start to rain. There is a great article by Nate Silver about this: [link]
However: All that geoengineering stuff, chemtrails and what not, that is just plain madness. These things do not exist in reality, only in conspiracy theories.
Lolconspiracy theory. Seriously, though, weatherpeople do lie. But it's not meteorologists lying. It's the weather reporters. They get fairly reliable reports from meteorologists, but if there's even a twenty percent chance of bad weather, that's the side they'll err to, because people are a lot less likely to be cross with them if they expected foul weather and got better than if they expected good weather and got worse.