Weather Planner: Wednesday, March 18, 2026

finger lakes weather forecast wednesday march 18 2026 sunny skies with a few clouds above a field with a little snow and trees and a road in the background
A quiet day with light south winds and a mix of sun and clouds is expected on Wednesday. A few early flurries off Lake Ontario will be possible, but no other precipitation is expected. Temperatures will be warmer than Tuesday but still cool with highs in the low and mid 30s. Clouds and winds will slowly increase during the night, holding temperatures in the upper half of the 20s overnight. [Photo by Gwen Moshier]

Weather Planner: Wednesday, March 18, 2026

A quiet day with light south winds and a mix of sun and clouds is expected on Wednesday. A few early flurries off Lake Ontario will be possible, but no other precipitation is expected. Temperatures will be warmer than Tuesday but still cool with highs in the low and mid 30s. Clouds and winds will slowly increase during the night, holding temperatures in the upper half of the 20s overnight.

The evening weather planner posts are designed to help you prepare for the next day by provide quick, time-specific forecasts before heading out. This is not necessarily a post you need to read start-to-finish, but you can easily navigate to the time periods that will affect your day. If you are looking for information beyond the date of this Weather Planner, check back in the mid-morning to see if an extended forecast has been posted.

Early Morning (3-7 AM)

Areas of clear skies with a few clouds. More clouds southeast of Lake Ontario.

A few snow showers in northern Cayuga and Onondaga counties.

Light and variable winds.

Temperatures in the mid 10s with a few colder pockets.

Morning (7-11 AM)

Sun and clouds.

No precipitation expected.

South winds around 5 mph.

Temperatures rising into the mid 20s.

Midday (11 AM-1 PM)

Sun and clouds.

No precipitation expected.

South winds around 5 mph.

Temperatures rising to the upper 20s to near 30 degrees.

Afternoon (1-5 PM)

Sun and clouds.

No precipitation expected.

South winds 5-10 mph.

Temperatures in the low 30s with some mid 30s in the usually warmer areas.

Late Afternoon (5-7 PM)

Sun, a few clouds.

No precipitation expected.

South winds 5-10 mph.

Temperatures mainly in the low 30s, but dropping slightly.

Evening (7-10 PM)

Gradually increasing clouds.

No precipitation expected.

South winds 5-10 mph.

Temperatures in the upper 20s with a few colder pockets.

Overnight (11 PM-3 AM)

Mostly cloudy.

No precipitation expected.

South winds around 10 mph.

Temperatures steady or rising slightly.

 

Business Sponsors Needed

Business sponsors play a vital role in funding Finger Lakes Weather. If your business benefits from the forecasting I do, please consider showing your support through a business sponsorship!

As a thank you, business sponsors are listed in several high-visibility locations. With between 600,000 and 800,000 combined page loads and app views each year, sponsors enjoy unparalleled cost-effective local reach. Most sponsors continue their support year after year.

For more information on the Sponsorship Program and to claim one of the of available spots, check out the Sponsorship page right away!

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.

Leave a Reply

Your email address will not be published. Required fields are marked *