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Boston Weather: 43.0°F | Overcast

Weather: Warm, Sunny Weekend on the Way

By Michael J. Ring
STAFF METEOROLOGIST -- After a string of abnormally mild days earlier this week, yesterday’s cold, raw, showery weather reminded us that it is the end of November. But the Boston area will enjoy warm weather again today -- in fact the record high of 68 degrees F (20°C) is in some danger.The change from yesterday’s chilly weather to today’s mild conditions is courtesy of a warm front which is pushing its way across New England today from south to north, Warm fronts occur when a mass of less dense warm air slides over a mass of denser, colder air, pushing the colder air away. Tonight a second type of front, known as a cold front, will pass through the area. Cold fronts form when a mass of cold air sinks under a mass of warm air. The cold front expected tonight is not particularly strong, however, so temperatures Saturday will be almost as warm as those for today. This will make for a gorgeous weekend, with temperatures closer to the climatological norms of mid-October than early December.

Weekend Outlook

Today: Early clouds yielding to partly sunny skies, with near-record warmth. High near 66°F (19°C).

Tonight: Cloudy with a chance of showers as the cold front passes through. Continued mild, with lows near 52°F (11°C).

Saturday: A beautiful day, with partly sunny skies and highs in the low 60s °F (16-18°C).

Saturday night: Mostly clear and cooler, with lows in the low 40s °F (5-7°C).

Sunday: Partly sunny. Highs in the upper 50s °F (14-15°C). Lows in the upper 30s °F (3-4°C).

Monday: Partly cloudy, with a return to seasonal temperatures. Highs in the upper 40s °F (7-9°C) and lows near freezing.