Perhaps those sashaying through the city Saturday in Halloween costumes raised a few goose bumps of fright. It seemed highly unlikely that any goose bumps were raised here by the weather.

No matter how flimsy one’s attire, it would probably have been comfortable enough here on Saturday, another warm day in a warm October.

The month is almost certain to finish with an average temperature in Washington at least three degrees above normal.

Beyond that, when October ends Monday night, it may go into the books as one of Washington’s 10 warmest since record keeping started in 1871.

Washington’s high temperature Saturday, as recorded at Reagan National Airport was 75, 11 degrees above normal, and seven below the record for Oct. 29. At Dulles International Airport it was a warmer 76 degrees.

Sunday may be still warmer. In discussing of their forecast, National Weather Service meteorologists said a surge of warm air “will push temperatures close to record highs.”

For Washington, the record for Oct. 30 is 82 degrees, last reached 20 years ago.

However, the Weather Service also noted that the warm air will give way to a cold front. That suggests that weather of Saturday’s sort will ultimately go into calendar-imposed exile, as autumn’s chill reasserts itself.

Morning temperatures that are decidedly cool hint at that. It got as low as 37 at Dulles Saturday morning, 39 degrees below the day’s high.