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Boston Weather: 45.0°F | Overcast

Weather: Upper Low Woes

By Marek Zebrowski
Staff Meteorologist

After a long spell of beautiful fall weather, wet and unsettled conditions will dominate the Columbus Day weekend. As some energy is left in the wake of a departing trough over the Northeast, an upper low will close overhead, guaranteeing at least a few days of grey skies. On the surface, a wave of low pressure will develop along a slow-moving cold front, and gradually move northward over New England on Friday. Wrap-around precipitation around this system will hang over the eastern sections of the region through Saturday, even though the heaviest rains will have shifted off-shore by then. A complete clearing will come only when a cold high pressure from central Canada decides to push southward on Monday, bringing very cool, but fair weather for the Columbus Day itself and for Tuesday.

Today: Cloudy with rain showers, interspersed with periods of drizzle. Winds slowly backing from the southeast to northeast. High 66F (19C)

Tonight: Cloudy and foggy, with light rain and drizzle. Low 56F (13C)

Saturday: Mostly cloudy and cooler, with some lingering precipitation reluctantly departing eastwards. High 61F (16C)

Sunday outlook: Partly cloudy, with some sunny intervals developing. Highs in the low to mid 60s (1618C), lows near 50F (10C)