Hot in the Finger Lakes through Wednesday

finger lakes weather forecast sun hot record warm
Temperatures will continue to run 20-25 degrees above normal in the Finger Lakes through Wednesday. [Photo by Joan Lockwood]

Late September Heat Wave

A late September surge of heat and humidity will persist in the Finger Lakes through the middle of this week before a quick change back to more seasonable temperatures.

High temperatures Monday, Tuesday, and Wednesday should all be 20-25 degrees above normal with many places breaking record highs during the stretch.

This heat and humidity is the result of a stagnant area of high pressure that has been with us for over a week. The center of the high is just southeast of the Finger Lakes, placing our region in the warm return flow on the backside of the high.

Skies will generally be sunny with only some high thin clouds and small fair weather clouds from time to time. A little fog will also be possible to start each day, but it should not be as thick or widespread as last week.

This will result in high temperatures pushing 90 degrees for most of the area on Monday and Tuesday.

A little bit of extra cloud cover ahead of a cold front will result in more upper 80s and fewer 90s on Wednesday, but the difference will hardly be noticeable.

Heat index values will push into the low 90s during the afternoon hours.

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Much cooler late in the week

A cold front will move through the Finger Lakes Wednesday night, ushering in much cooler, less humid weather.

Temperatures on Thursday will be close to the seasonal normals, with highs mostly in the mid 60s.

Friday will be even cooler, with highs in the low 60s. Saturday may only see highs in the upper 50s before temperatures trend a bit warmer on Sunday.

Overnight temperatures will be much more comfortable, with lows dropping into the 40s.

Unfortunately, what this front will not bring the region is rain. One or two light, insignificant showers will be possible as the front moves through late Wednesday, but most areas will not see any rain.

A small disturbance may bring a couple more showers Friday night, but again, the amount of rain will be insignificant.

Meteorologist Drew Montreuil
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.) When not forecasting, he can be found working at the local library, making soap, or playing with his two young boys.

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