According to this article, “Watering woes are not over yet” you should not stop watering at this time. In fact you should keep watering until the soil, ground temperature falls below 40 degrees Fahrenheit.
This year’s drought is the game changer. Adjustments must be made to insure a healthy lawn in 2013
Check out this video. Watering is really the key. Aerating fertilizing and seeding are normal fall tasks, but this year, the emphasis should be on watering.