They need to do a bit of remedial science. Water freezes at what temperature?
Apparently not all weather forecasts are created equal. When I need to know what the weather's going to do, I use weather.com or wunderground.com
Going to CBS for your weather is like doing your main grocery shopping at the local convenience store. Sure, you technically can, but A) they don't have many things B) they're super over-priced and C) many things are close to expiring.