Yesterday, Rizzo pinged me, took about 4 steps toward me, then just stopped. I spoke to him, and it was as if he had never pinged me in the first place.
It does not show the current day in the game, it just shows what might happen, the game never knows what's gonna happen until it loads the save, which is why you can reset for campers, katrina, redd, who moves in, where villagers move in, etc.
That's not a glitch, it's by design. Try this. Dig a hole in front of a bench and then sit on the bench by entering from the side. You'll fall into the hole.
If you already started the day, it is accurate. If your established character hasn't started the day, it's just a possibility. The first time I load up, the title screen may be showing snow, but it may be a clear day once I start.
I came across a glitch where Phil gave me a time capsule and it was impossible to bury it. I ended up having to throw it away, but he never asked for it back, so it's all good.