Quiet, mild weather continues for the Finger Lakes

finger lakes weather forecast tuesday march 21 2023 sun clouds mild
High temperatures will be into the 50s for most areas through Thursday. [Photo by Gwen Moshier]

Weather Through Wednesday

A pair of high pressure systems will keep the weather tranquil across the region today and tomorrow, though there will be some subtle features at play.

An area of cloudiness moved through overnight and kept temperatures from falling too far. These clouds have since departed, and skies are starting out the day mostly clear.

Throughout the morning hours, skies will be sunny with a slight southwest wind, thanks to high pressure centered over the Carolinas. Mild air will continue to push north into the area, and temperatures will quickly warm through the 40s and into the low and mid 50s for many by the early afternoon.

The second high pressure, located over Canada north of the Great Lakes, will nose its way in this afternoon. The wind will shift, first to the west, then the northwest, and finally to the north. Wind speeds will remain light.

By the late afternoon, there may be a sharp dividing line between light north and light southwest winds over the Southern Tier.

Ultimately, this boundary will lead to some additional clouds this afternoon and a drop in afternoon temperatures back to the 40s from north to south, but nothing more.

It will remain mostly cloudy this evening and overnight, but the wind-shift boundary will disintegrate and south winds will take back control regionwide.

Overnight lows will mostly be in the low and mid 30s, but a few colder pockets will be possible.

Wednesday will remain cloudy as both high pressure systems drift eastward and influence from a weak low pressure system over the Midwest extends east into our area. Precipitation is not expected, however, despite persistent cloud cover.

South and southwest winds will blow throughout the day, remaining under 10 mph. This will ensure another warm day, with highs reaching into the mid 50s for many areas.

Clouds and south winds will continue through the night, holding overnight temperatures in the low and even mid 40s.

finger lakes weather medium range snow outlook tuesday march 21 2023 see blog text for pertinent information
Some snow may be possible early on Saturday and late Monday into early Tuesday, but chances are moderate to low at this point in time. Click to enlarge.

Unsettled Weather Pattern

We will transition to an active weather pattern starting on Thursday and continuing into next week.

Low pressure will track across eastern Canada into northern New England on Thursday, keeping warm air in place for Thursday. Exactly how warm it gets on Thursday will depend on the expected rain.

High temperatures should at least make it into the upper 50s, but some places will probably hit or exceed 60 degrees. This becomes more likely the less it rains during the morning hours. At least some scattered showers are expected.

Rain should become more widespread during the afternoon hours. A few localized areas could see some brief heavier batches of rain, pushing rain amounts towards a half-inch. The rain should depart during the evening hours.

South and southwest winds will become stronger ahead of the rain with speeds at or above 10 mph and gusts of 25-35 mph. Those winds will sharply turn to the northwest late in the afternoon and into the evening hours. Wind speeds will be close to 10 mph, but gusts should remain under 30 mph.

Temperatures will fall back to near 30 degrees by Friday morning. Friday will be cloudy but quiet between systems, with highs in the low 40s.

Saturday will start out with some snow or even a little icy mix during the morning hours. Some accumulation may occur, but chances are modest. Rain will take over as the dominant precipitation type by midday, with scattered showers through the afternoon and evening.

High temperatures on Saturday should reach the low 40s with some strong winds. During the morning, southeast winds will blow at up to 20 mph with gusts over 40 mph. The winds will be lighter during the afternoon and overnight, but still a bit blustery as they turn to the south, then west.

finger lakes weather 7-day forecast tue mar 21 | tues, sun and clouds mid 50 | wed, mostly cloudy mid 50 | thur, periods of rain near 60 | fri, mostly cloudy low 40 | sat, snow turning to rain low 40 | sun, sun and clouds upper 40 | mon, snow turning to rain low 40
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.

Sunday will be dry and a bit warmer, but still windy. West winds will gradually turn to the northwest, peaking in speed during the morning and midday hours. Wind speeds may again approach 20 mph with gusts at or above 40 mph.

Skies will be a mix of sun and clouds on Sunday with highs in the upper 40s.

Another mixed precipitation system will be possible early next week. This time, precipitation may start as rain Monday afternoon before turning over to snow late in the day and overnight. Some accumulations are again possible, but with low chances at this point in time.

There should be little change in the pattern late next week and beyond, with occasional weather systems passing through and temperatures generally in the 40s during the day and 30s during the night.

More Information:

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finger lakes weather 7-day forecast tue mar 21 | tues, sun and clouds mid 50 | wed, mostly cloudy mid 50 | thur, periods of rain near 60 | fri, mostly cloudy low 40 | sat, snow turning to rain low 40 | sun, sun and clouds upper 40 | mon, snow turning to rain low 40
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected.

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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.