What your seeing is interveinal chlorosis. Essentially it's a nutrient deficiency causing the yellowing of your leaves in between the veins. You'll need to identify if it's older leaves or newer leaves dying first. If older, it's likely manganese or magnesium. If it's younger leaves, it's likely iron.
It's worth noting that you also have necrosis around the outsidea of the leaf as well which is typically a sign of other deficiencies as well.
The easy fix is to just give your plant a little fertilizer. Should start to help after awhile. Your going to unfortunately lose those leaves though.
Edit: I see that everyone is commenting that it's a lack of water. I don't think so. A lack of water will cause the veins of the plant to yellow before the rest of the leaf. In your picture, the veins are green. To me, that means that your plant is pulling nutrients from that leaf to use elsewhere. It's killing that leaf (by pulling nutrients) to keep the rest of the plant alive and healthy.
First and foremost get it in front of bright, indirect sunlight and get it some liquid fertilizer. Honestly anything will help at this point. Make sure to dilute fertilizer or you will end up with nutrient burn.
Can we see the rest of the plant? What does the soil look like? How much sun is it getting? Was it transplanted recently? As others have said Monsteras do like to dry out. Water just the soil once every week or so when soil feels dry, every two in slower seasons. Do not spray the leaves, make sure when you water you are giving it enough to encourage deep roots.
It does look like overwatering and potentially too little sunlight. My indoor Monsteras have grow lights for 12 hours, outdoor they do well under a patio with partial sun through the screens to give you an idea. They do well in heat and humidity, as long as the soil isn't crispy. Less of an issue indoors. Definitely let it dry out between waterings, best of luck!