What's the best way to get rid of it? I noticed it this morning.

 

I have found that Poorboys Spray & Wipe works very well at removing any water spots. It's also a great QD to keep in your car at all times.

 

i would remove that grill and claybar it. perhaps some white vinegar
might work too. looks like lots of calcium deposits.

 

I'm going to go ahead and use what Garnet Canuck suggested.

 

ya quick detailer seems like it would be the best solution

 

yeah i have this same problem.

 

Will this product work for dry spots and the stuff on the grill?

 

+1^^^ Plus, it can actually be used as a waterless car wash on light dusting cars.

 

You must have pretty hard water where you live.

It looks like the residual calcium found in hard water.......

May be harder to remove than just a spray of detailer...
If that doesn't work, Remove the grille and claybar like the other poster said, or try some light polishing compound.

Good luck.