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Boston Weather: 39.0°F | Fair

Weather: Rise 'n Fall

By Gerard Roe
Staff Meteorologist

With a large low pressure system currently straddling U.S.-Canadian border, the resulting strong southerly advection of warm air will bring temperatures up to not far off record highs for this time of year. With a mostly cloudy start to the day ahead of the cold front, winds will be from the south or southwest and gradually increasing in strength, becoming quite breezy (15-20mph) during the middle of the afternoon. Clouds will soon be out of the way, and a mostly sunny day is in prospect. By late afternoon, winds shifting round to the west then northwest signal the passage the front, after which, temperatures will fall quite sharply. The high pressure following on in the wake of the departing low will bring clear, cool weather for the weekend with a slight moderation on Sunday. Perfect conditions for gawking at foliage.

Today: Cloudy early and then mostly sunny. Warm and breezy High 78F (26C). Winds from the southwest turing to northwest later.

Tonight: Clearing and cool. Low about 45F (7C)

Saturday: Cool and sunny. A touch of frost possible on high ground outside the city. High 64F (18C). Low 37F (3C)

Sunday: A touch warmer. High around 70F (21C). Low around 45F (7C)