The Featherweights forum is a section on here for people looking to lose just a little weight, or those last few pounds. If you spend any time on it you'll see that many people lose 1-2 lbs a month at most.
As you get closer to your goal weight, there is a danger in losing too quickly. The body has little fat left to burn and burns a greater percentage of lean body mass (LBM). This means bone mass, muscle mass, etc. Losing important bone and muscle mass (what makes you strong, healthy, and looking fit) while maintaining fat is not really what most people want aesthetically or health-wise.
You are already very much within a healthy weight range for your height. If you try to keep losing, make sure you are eating nutrient-dense food, getting adequate protein, and engaging in weight-bearing activities. This will help you preserve muscle as you lose.
It could be though that you've gotten to a point where your body really doesn't want to lose any more weight without going to extreme measures. I'm in that area right now. I was stuck at 124-122 for 5 months before I realized (with the help of 3FC) that it was a signal that going lower just wasn't in the cards for me. It's not a matter of selling myself short, it's a matter of listening to my body and realizing enough was enough.
If that's the case you may be interested in working on body recomposition-- trying to shed fat but not necessarily weight. This would involve upping your protein and working on a structured strength training program.
Like
sontaikle said, I wouldn't focus on numerical goals for the month. Focus on your health, your diet, and maintaining your exercise. If the weight loss follows, that's great. If it doesn't, you can switch things up or start being happy with your weight loss where you are. It could be that you're at goal and you don't even realize it yet