Here is the forecast from one of our computer models. The model is forecasting a low tonight of 27 degrees at Bradley which would be the lowest temperature so far this fall. The coldest reading this month was 33 degrees on the 23rd. Having the first freeze occur so late is unusual since 90 percent of first freezes occur by 10/22 at Bradley Airport. Waiting until 11/1 is late for sure.
With a wind that stays up all night frost is unlikely but a freeze is likely. Make sure the trick or treaters bundle up!