Weather Planner: Wednesday, August 19, 2026

finger lakes weather forecast wednesday august 19 2026 a low dark cloud dominates the sky over the right side of the image while a little blue sky is poking through the left. A broad green field is in the foreground with forested hills in the background
Photo by Joan Lockwood

Weather Planner: Wednesday, August 19, 2026

Wednesday will see another small weather system pass through. Scattered showers and perhaps a few thunderstorms will cross the region, especially in the midday and first half of the afternoon. By evening, skies will be clearing out. Temperatures will mainly be in the mid 70s with some warmer pockets possible in the Southern Tier. Humidity will be moderate with dewpoints well into the 60s. Cool, dry air will build in overnight with lows ranging through the 50s.

Humidity, Air Quality

Dewpoints: Somewhat muggy with dewpoints in the mid 60s.

Air Quality Index: No wildfire smoke—air quality normal—during the day. Some increase in smoke with localized minor impacts on air quality overnight.

 

Early Morning (3-7 AM)

Mixed skies.

No precipitation is expected.

South winds around 5 mph.

Temperatures in the mid and upper 50s to the south and east, with low and mid 60s to the north and west.

Morning (7-11 AM)

Increasing clouds.

Maybe a shower, especially late.

Southwest winds around or slightly over 5 mph.

Temperatures rise to the low 70s.

Midday (11 AM-1 PM)

Mostly cloudy.

Scattered showers increasing.

Southwest winds 5-10 mph.

Temperatures mainly in the mid 70s with a few warmer pockets in the eastern Southern Tier.

Afternoon (1-5 PM)

Clouds, some sun, especially late.

Scattered showers and a few isolated thunderstorms.

West winds 5-10 mph.

Temperatures mainly in the mid 70s with a few warmer pockets in the eastern Southern Tier.

Late Afternoon (5-7 PM)

Sun and clouds.

Small chance for a lingering shower.

West winds 5-10 mph.

Temperatures in the low and mid 70s.

Evening (7-11 PM)

Partly cloudy to mostly clear.

No precipitation is expected.

West winds around or under 5 mph.

Temperatures drop to the low and mid 60s.

Overnight (11 PM-3 AM)

Partly cloudy with areas of fog.

No precipitation is expected.

West and northwest winds around or under 5 mph.

Temperatures in the mid and upper 50s.

Thursday Preview

Some morning clouds, especially to the southeast. More sun in the afternoon. Highs in the low and mid 70s.

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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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