Brooklyn Weather in October
Mid-October in New York is typically mild; cool in the mornings, but pleasant in the daytime. Expect early morning temperatures of 48-60 degrees Fahrenheit, with temperatures rising to between 60 and 70 degrees. Last year (2017) we saw a high temperature of 72.
Is it going to rain?
If only we knew! For the last five years it has been dry on this particular October weekend, but as always, rain is possible. The marathon and half marathon will take place rain or shine. It's never a bad idea to throw a light rain shell in your bag.