Rainfall was spotty on Thursday during the day, but the heaviest is moving in throughout the night.
A cold front is advancing toward New England, bringing the heavy rain and possible thunder with it.
Track the storm with Early Warning Pinpoint Doppler here.
A weak wave of low pressure will develop on the front as the night wears on. Aloft, there is a deep southerly flow of moist air. This will all combine to produce periods of rain that will be heavy at times this evening and tonight," said Chief Meteorologist Bruce DePrest.
While flooding won't be a significant problem, there could be some street or poor drainage flooding.
Early Warning Futurecast showed the really heavy rain moves in after about 9 p.m., and heavy rain is expected at about midnight as well.
DePrest said there could be some 30 mile per hour wind gusts, if not higher. Temperatures will be in the 50s to near 60 degrees for most of the night, but they will drop toward morning.
"Still, it will be fairly mild early tomorrow with readings in the 40s and lower 50s," DePrest said.
The rain will end early Friday morning as the front moves away, between 6 a.m. and 9 a.m.
Rainfall totals will likely range from 1 to 2 inches, but there could be higher amounts.
The roads will be very wet for the morning commute with some big puddles, but they will be dry by the afternoon.
A partly sunny weekend is expected with highs in the upper 40s and low 50s. It could be a little breezy on Sunday.
A few rain showers will develop late Saturday night and they’ll be around Sunday morning as well," DePrest said.
"Wet snowflakes could mix in over the hills of Northwestern Connecticut before the precipitation ends later in the morning," he added.
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