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Boston Weather: 37.0°F | Partly Cloudy

Weather: Autumnal October

By Bill Ramstrom
STAFF METEOROLOGIST -- The upcoming weekend looks to be a 50/50 proposition -- Saturday will be quite pleasant, but clouds and showers are likely for Sunday. But for today and tomorrow, a broad high pressure system will dominate the eastern half of the country, leading to clear blue skies and low humidity. A low pressure system in southern Canada will approach for Sunday, with cloudiness and some showers.

Drought-ending rains over the course of September, including drenching downpours from the much-weakened hurricanes Dennis and Floyd, helped to bring Boston’s annual rainfall totals up to normal levels. In much of the eastern U.S., hurricanes and their remnants make up an important fraction of annual rainfall; in fact, persistent drought in the 1960’s in the Northeast is blamed, in part, on the dearth of landfalling hurricanes. Thus, while it may seem that the only purpose for hurricanes is to guarantee full employment of on-location news reporters, the more widespread but much less dramatic rainfall turns out to be the hidden benefit.

Today: Sunny and breezy. High 68°F (20°C).

Tonight: Clear and cool. Low 54°F (12°C).

Saturday: Sunny, increasing high clouds. High 70°F (21°C).

Saturday night: Overcast. Low 57°F (14°C).

Sunday: Clouds with rain showers. Highs near 65°F (18°C).