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Boston Weather: 43.0°F | Rain

Weather: Temperatures Fall!

By Marek Zebrowski
Staff Meteorologist

After a balmy, summer-like September, the weather patterns have shifted gears, and a good part of the Eastern United States will experience much cooler, November-like chill. A cold front associated with a deep low over the Canadian Maritimes will push a frigid airmass all the way down to the edge of the Gulf of Mexico by late Friday, ushering the coldest night of the season so far. A substantial pressure gradient existing between these two systems will maintain biting north westerly winds, and bring in for our region the windchill factor as well - a sure sign of the approaching cold season. Additionally, a trough line, due to cross central New England by Friday afternoon will introduce a reinforcing shot of cold air, so that Saturday morning will be the coldest sunrise so far this Fall, with some scattered frost possible in sheltered inland locations.

Afterwards, as the high pressure system settles over the Eastern Seaboard, several fair and gradually warmer days will follow well into next week.

Today: Partly sunny, with strong northwesterly winds. Chance of scattered afternoon sprinkles, especially in the hilly terrain to our west and north. High 62F (16C).

Tonight: Clearing and quite cold; continued windy. Low 43F (6C), with mid 30s (13C) in the suburban areas.

Saturday: A chilly start, followed by slowly moderating temperatures. Windy and cool, with highs near 60F (15C).

Sunday: Continued fair and cool with lows in the mid to high 30s (13C), and highs in the upper 50s to low 60s (14-17C).