Weather Planner: Monday, July 20, 2026

finger lakes weather forecast monday july 20 2026 blue skies and a few small fair weather clouds above a road running to the horizon from the bottom center to the middle of the image down and then up a hill. Some corn is growing to the left while grassy fields are to the right with forest in the background
Photo by Gwen Moshier

Weather Planner: Monday, July 20, 2026

Monday will be quiet and comfortable with low humidity and mild temperatures generally topping out around 80 degrees. Wildfire smoke is not expected to be in the area, so air quality will be good. Thin clouds will move in and blanket the sky overnight as southerly winds start to increase ahead of the next weather system on Tuesday.

Active Weather Updates

Tuesday early afternoon updates
Update Type: THUNDERSTORMS
Expires: July 21, 2026 5:00 pm

Humidity & Air Quality

Dewpoints: Very comfortable, low-mid 50s

Air Quality Index: No significant concerns: Mainly Level 1/Green/Good

Early Morning (3-7 AM)

Just a few clouds.

No precipitation is expected.

South winds around 5 mph.

Temperatures in the low and mid 50s.

Morning (7-11 AM)

Sunny with a few clouds.

No precipitation is expected.

South winds around 5 mph.

Temperatures rising to the mid and upper 60s with a few low 70s.

Midday (11 AM-1 PM)

Sun and clouds.

No precipitation is expected.

South winds around or slightly over 5 mph.

Temperatures mainly in the mid 70s.

Afternoon (1-5 PM)

Sun and clouds.

No precipitation is expected.

South winds around or slightly over 5 mph.

Temperatures in the upper 70s to around 80 degrees.

Late Afternoon (5-7 PM)

Sun and clouds.

No precipitation is expected.

South winds around or slightly over 5 mph.

Temperatures in the mid and upper 70s.

Evening (7-11 PM)

Mostly cloudy with a thin overcast.

No precipitation is expected.

South winds 5-10 mph.

Temperatures gradually fall to the mid and upper 60s.

Overnight (11 PM-3 AM)

Mostly cloudy with a thin overcast.

Maybe a stray shower.

South winds around 10 mph.

Temperatures steady in the mid and upper 60s.

Tuesday Preview

Another round of afternoon severe thunderstorms looks likely. Similar to Saturday, this could evolve into a fairly widespread and locally significant event. Stay tuned for more Monday morning.

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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