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Boston Weather: 54.0°F | Overcast

Weather: Cooler Temperatures Prevail

Greg Lawson
STAFF METEOROLOGIST -- Many of the people still wondering where summer went this year will be further disillusioned by this coming week. Yesterday’s high was only 60°F (16°C), thanks to a healthy northerly wind associated with a high pressure system passing to our north. As this high passes over the Canadian maritimes, our skies are feeling the influence of a strong storm which has quickly moved northward from the Carolina coast. This storm has brought us rain, strong winds, and temperatures even cooler than yesterday. Fortunately, the storm will move out as quickly as it moved in and the rain should end late tonight, but not before delivering over half an inch of accumulation in some places. With the rain clouds gone, temperatures will try to rise back to their normal levels Wednesday. Though it will reach back into the 60s, a large high pressure system from Canada will plow over us Thursday, bringing temperatures solidly back down into the 50’s -- overnight temps then could dip into the 30’s! It will then be a waiting game for the next upstream low to move in and bring us warmer southern air, whether it be rain-bearing or not. Don’t lose faith though: Indian summers often require an early freeze to get started.

On warmer topics, Hurricane Isaac is roaring off the coast of Africa at category three strength. He is not expected to affect our weather at all. Nor is tropical depression fourteen which has formed in his wake. Both storms serve to remind us that hurricane season extends all the way through the end of November and that, in spite of the current cold spell, anything is still possible in the months to come.

Extended Forecast

Today: Rain with gusty northeasterly winds. Potential for heavy downpours. Chilly high of only 54°F (12°C).

Tonight: Rain letting up late. Winds shifting more westerly. Low of 47°F (8°C).

Wednesday: Skies mostly clearing. Cool and crisp. High of 64°F (18°C). Low of 45°F (7°C).

Thursday: Clear and cool. Northerly winds. High in the mid 50s (12-14°C). Low around 40°F (4-6°C).

Friday: Clouding up and remaining cool.