Clouds increase Friday as pattern shifting weather system approaches

finger lakes weather forecast friday march 18 2022 sunny warm clouds saturday thunderstorms
Temperatures will be around 70 today and well into the 60s Saturday before a cold front brings a few thunderstorms late in the day.

Spring Pattern Through Saturday

Warm weather will continue across the Finger Lakes for the next two days before cooler, more typical March weather settles in.

Skies are clear across the region this morning and sunshine will persist into at least the early afternoon hours. Clouds will eventually make their way in from the west. At first, the clouds will be thin, but they will thicken late in the day.

A light south wind will blow at under 5 mph. A lake breeze, caused by the colder air over Lake Ontario, will move inland this afternoon, turning winds to the north mainly for areas near and north of the Thruway.

Outside of the lake breeze, highs will mainly be in the upper 60s and low 70s. Along the Thruway, mid 60s are more likely, with a drop to the mid 50s along the shore of Lake Ontario.

South winds will increase to around 10 mph overnight. Along with the clouds, this will hold temperatures around 50 degrees through the overnight. Some scattered showers will move through between midnight and dawn.

Stray showers cannot be ruled out at any time tomorrow, but most of the day will turn out dry. Some sun will poke in and out of the clouds. South winds will increase to 10-15 mph with gusts of 25-35 mph. Higher elevations will see the strongest wind gusts.

After 4 PM, a cold front will move in and clash with temperatures in the mid and upper 60s and dewpoints in the 50s. This should be enough to get a broken line of showers and thunderstorms to develop, though the amount of lightning will probably be limited.

Nonetheless, there is enough wind energy in the atmosphere that any storms that develop may be able to produce strong wind gusts. Severe thunderstorm alerts will be possible. The highest threat for severe weather will come between 5-7 PM for areas east of Seneca Lake. Most areas will probably not see severe thunderstorms, though.

finger lakes weather 7-day forecast friday march 18 2022
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.

More March, Less April

Cooler air will move in behind the front with temperatures ranging from the mid 30s to low 40s by Sunday morning. Rain showers and a few wet snowflakes will be possible throughout the morning.

Precipitation will taper off for the afternoon and some sun may work its way out. The sun will give temperatures a late boost into the 45-50 degree range, but most of the day will be spent closer to 40 degrees.

Monday morning temperatures will start in the low 30s but highs will push back towards 50 degrees. Early sunshine will be replaced by clouds. A late shower cannot be totally ruled out at this point.

Temperatures will take another step back for Tuesday and Wednesday with highs near or just above 40 degrees. Tuesday looks dry, but rain, possibly mixing with snow, will be possible on Wednesday.

Thursday also looks rainy but warmer with highs in the low 50s. Friday and Saturday look similarly warm with additional rain showers.

A brief cool down will be possible thereafter, but all in all, temperatures should average out to be about where they should be in late March: the mid and upper 40s.

More Information:

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finger lakes weather 7-day forecast friday march 18 2022
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.