Weather Planner: Thursday, September 17, 2026

finger lakes weather forecast thursday september 17 2026 thick clouds above a grassy meadow in the foreground, forest in the midground, and distant hills in the background
Photo by Joan Lockwood

Weather Planner: Thursday, September 17, 2026

Rain showers will be most widespread Thursday during the morning hours, when a few heavier downpours may also be possible. That rain will move east by midday, but a few more stray, light showers may pop up through the afternoon. It will be very humid with dewpoints approaching 70 degrees in some areas. Afternoon highs will reach the low and mid 70s. Thursday night, clouds will start to break up more and humidity levels will slowly drop. Overnight lows will be in the low 60s. Much lower humidity will settle in on Friday with sunshine.

Early Morning (3-7 AM)

Mostly cloudy.

Scattered showers and a few downpours, especially over the southern half of the region.

Light and variable winds.

Temperatures in the mid 60s.

Morning (7-11 AM)

Mostly cloudy.

Scattered showers and a few downpours, especially over the southern half of the region.

Light and variable winds.

Temperatures in the upper 60s to near 70 degrees.

Midday (11 AM-1 PM)

Mostly cloudy.

A few lingering scattered showers and downpours in the east through noon.

North winds around 5 mph.

Temperatures in the low 70s, with some mid 70s in urbanized valley locations.

Afternoon (1-5 PM)

Clouds, some sun.

A few scattered showers.

Northwest winds 5-10 mph.

Temperatures in the low and mid 70s.

Late Afternoon (5-7 PM)

Clouds, some sun.

A few scattered showers.

Northwest winds around 5 mph.

Temperatures in the low 70s, with some mid 70s in urbanized valley locations.

Evening (7-11 PM)

Partly cloudy to clear at times.

No precipitation is expected.

Northwest winds around 5 mph.

Temperatures slowly dropping to the mid 60s.

Overnight (11 PM-3 AM)

Partly cloudy to clear at times.

No precipitation is expected.

Northwest winds around 5 mph.

Temperatures in the low 60s.

 

Friday Preview

Sunny with some clouds, increasing late. Highs in the upper 60s to near 70. Breezy north winds.

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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.

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