After showery Monday, weather pattern settles down

finger lakes weather forecast monday may 18 2020 showers
Monday will be a showery day, but the rest of the week looks dry with increasing temperatures. [Photo by Meteorologist Drew Montreuil]

Showers Diminish

Areas of light rain are falling throughout the Finger Lakes Monday morning.

This rain is associated with a large, but slow moving low pressure system centered near Chicago. The low is being blocked by a strong high pressure to the north of the Great Lakes.

The clockwise flow of air around the high is clashing with the counter-clockwise flow of air around the low over Upstate New York. This is producing the rain we are seeing this morning.

As the day progresses, the low will meander southeast toward the Ohio Valley. The departure of the low will decrease the clashing of the air and the high will take over as the primary influencer.

AS this happens, showers will decrease this afternoon and end entirely this evening. Most of the Finger Lakes will see between 0.1-0.3 inches of rain today, but the Southern Tier will see lesser amounts.

Temperatures will not move much today. After starting in the mid and upper 50s, highs will top out near 60 degrees. The Southern Tier should push into the mid 60s.

Overnight, skies will remain mostly cloudy, keeping temperatures in the 50s most of the time before slipping into the upper 40s near dawn Tuesday.

finger lakes weather 7-day forecast monday may 18 2020
Click to enlarge.

Quiet, Mild Weather

High pressure should keep control of our weather for the remainder of the week, bringing quiet conditions and seasonable temperatures.

Clouds will remain overhead on Tuesday, but may be thin enough for some limited sunshine to shine through. These clouds will remain into the evening hours before pulling away to the south overnight.

Temperatures will push into the mid 60s tomorrow with light east winds.

Skies will turn sunny for Wednesday with few if any clouds in the area. Mostly clear skies will persist into the overnight.

High temperatures will range from 65 to 70 degrees on Wednesday, with the warmest readings in the I-90 Corridor. Wednesday night’s temperatures will fall back into the low and mid 40s for most with a few upper 30s near the Pennsylvania state line.

Thursday looks like a repeat of Wednesday with plenty of sunshine and very few or no clouds. Light south winds will boost temperatures to near or slightly above 70 degrees.

A southerly flow will persist for Friday and a few clouds will start to creep back into the area. Precipitation is unlikely, though the threat for a late shower in the far south cannot be totally ruled out at this early stage.

Highs Friday should be into the mid 70s. Temperatures will remain near or above 75 degrees through the weekend and into next week.

There may be some chances for rain this weekend, but even those remain uncertain and it could easily stay dry.

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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.