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Boston Weather: 58.0°F | Overcast
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It was a cool start to the week this week thanks to the passage of a cold front on Saturday evening. Boston’s low temperature early Monday morning was a chilly 39°F (4°C), the coldest it’s been in the city since April 21!

The main story this week is the long-lived coastal low pressure system that will dominate our weather for the remainder of the week. The low pressure system, which was situated over the Great Lakes region yesterday afternoon, is currently approaching our area from the west. Winds ahead of this system will be from the south, allowing conditions in Cambridge to moisten and warm up to about 62°F (17°C) by late afternoon. There is a chance of showers in the morning ahead of the low, with rain becoming more likely by late morning/early afternoon.

This low pressure system will remain in our region on Wednesday and Thursday thanks to the fact that, at upper levels, it will be cut off from the fast-moving winds of the jet stream. Thus, widespread rain is likely on Wednesday and Thursday. The system will finally begin pushing out of the area on Friday morning, although there will still be a chance of showers Friday as it exits. All told, Cambridge could see rain totals in excess of an inch through the end of the week.