Cooler Friday with rain chances increasing overnight

finger lakes weather forecast friday may 11 2018 sun clouds rain weekend
After some morning sun, clouds will increase late in the day with rain arriving overnight. [Photo by Joanne Brown]

Cooler Friday & Saturday

A dome of cool air will build into the Finger Lakes on Friday with a chilly, showery day expected for Saturday.

North winds behind yesterday’s cold front and ahead of a high pressure system building into the Great Lakes will keep temperatures down for Friday.

Most areas are starting the day in the low 40s, but some locally colder pockets of upper 30s exist.

A mix of sun and some clouds will move through the Finger Lakes during the morning. More clouds are expected to build in during the afternoon.

Temperatures will reach the mid 50s today for highs. Winds will be a bit blustery, but not too strong with top gusts around 25 mph.

A wave of low pressure will move through the southern Great Lakes along a strengthening frontal boundary. A couple showers could enter the region as early as this evening.

Steadier rain is likely after midnight and persisting into Saturday morning. While the heaviest amounts in excess of an inch will likely stay south across Pennsylvania, the southern half of the Finger Lakes could see a half-inch or more of rain. Lesser amounts are expected further north.

The rain should taper to showers during the late morning, then end by the late afternoon.

With the clouds and rain, temperatures will remain low on Saturday. Look for highs to struggle to get past the low 50s.

Improving Weather for Mother’s Day

As the low pressure system responsible for Saturday’s rain moves east, the stalled out frontal boundary will sink south.

The front should move far enough south that at least partial sunshine should work out for Mother’s Day on Sunday.

The sun should help temperatures return to seasonable levels. High temperatures should reach the 60s.

There is still a fair amount of uncertainty for Sunday, and temperatures could end up cooler. At this time though, I do not think that will be the case, especially over the northern Finger Lakes.

Regardless of the temperatures, no rain is expected on Sunday.

The weather will continue to improve on Monday. Mostly sunny skies are expected with highs pushing back into the low and mid 70s.

The next chance for rain and thunderstorms will come on Tuesday.

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Follow Meteorologist Drew Montreuil:
Meteorologist Drew Montreuil has been forecasting the weather in the Finger Lakes region since 2006 and has degrees in meteorology from SUNY Oswego (B.S. with Honors) and Cornell (M.S.). Drew and his wife have four young boys. When not working or playing with the boys, he is probably out for a run through the countryside.