Warm weekend ends wet with rain Sunday Night

finger lakes weather forecast friday december 15 2023 sunny warm rain sunday night
Today will be sunny and warm, while Saturday will be cloudier and a touch cooler. Rain arrives late Sunday. [Photo by Gwen Moshier]

Above Average Temperatures

High pressure over the Ohio River Valley continues to dominate our weather.

Today should be sunnier and warmer than yesterday as a southwesterly flow persists.

Skies are clear throughout the region this morning. Despite the clearing, most areas are already above the average high temperature for the day with widespread upper 30s and low 40s.

However, there are some cold pockets in the southeastern Finger Lakes, particularly where there is still a little snow cover. Cincinnatus, in Cortland County, is reporting 21 degrees at 7 AM.

Temperatures will rise steadily this morning, and many will end up near or above 50 degrees this afternoon. Higher elevations, particularly in and around Cortland County, will settle for upper or mid 40s.

Wind speeds will be near or under 10 mph, except for some slightly stronger winds near Rochester and the Genesee Valley. These will be southwest and west winds.

Tonight, skies will remain clear at first before clouds increase. Evening temperatures will slowly drop to the 30s, with overnight lows in the low 30s across the south with mid 30s to the north.

Skies will be cloudier on Saturday, though some glimpses of sunshine here and there are likely. Control of our weather will be passed from the Ohio Valley high pressure system to a new high moving across Canada.

This change will shave several degrees off the high, with Saturday topping out mostly in the mid 40s.

Winds will turn to the south-southeast Saturday night and increase to 10-15 mph. Clouds will also increase and thicken. Overnight lows will stick near 40 degrees as a result.

Southeast winds will remain on the blustery side into Sunday with thick cloud cover. Nonetheless, Sunday’s temperatures will be closer to today’s levels with highs around 50 degrees.

finger lakes weather calendar last chance

Time’s Up!

Today is the LAST day to order your FLX Weather 2024 Calendar and Almanac. The sales page will close tonight by 10 or 11 PM.

If you have been on the fence about purchasing a calendar, here are my Top 5 reasons why I’d encourage you to give it a try:

  1. The pictures are all from the Finger Lakes region and really capture the variety of our weather in stunning beauty.

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  3. All new on-grid events, from years ending in -4 or -9, mark anniversaries of significant weather in our history.

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  5. The calendar sale is a very important fund raiser for the Finger Lakes Weather operating budget in 2024.

You can learn more about the calendar, read the two-dozen five star reviews, and order yours at flxweather.com/calendar. This makes a great gift, too!

All orders will be shipped out by Saturday morning.

Thank you for supporting Finger Lakes Weather through the calendar sale.

finger lakes weather 7-day forecast fri dec 15 | fri, sunny a few thin clouds low 50 | sat, mostly cloudy mid 40 | sun, rain by evening near 50 | mon, periods of rain low 40 | tues, snow showers near 30 | wed, sun and clouds upper 30 | thur, sun and clouds upper 30
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.

Rainy, then Quiet Again

A strong coastal low pressure system will race along the Eastern Seaboard Sunday into Monday, causing severe weather over Florida, coastal flooding along the Atlantic coast, and plenty of heavy rain up and down the eastern United States. A complete lack of cold air will prevent a major winter storm.

The first rain will arrive in the Finger Lakes late Sunday afternoon or early in the evening. Very little rain is expected before the sun sets.

Rain will increase Sunday evening with the heaviest falling after midnight and into Monday morning. Showers will continue on Monday, but the rain should be lighter and more sporadic as the afternoon goes on.

How much rain falls will depend on the exact path of the low pressure. The most likely scenario is for 1-2 inches to fall, but as much as 3 inches, or as little as a half-inch, remains possible.

Monday night into Tuesday, some cold air will be pulled down behind the low. Scattered snow showers and lake effect bands will develop with some localized minor accumulations. High temperatures on Tuesday will struggle to reach 30 degrees.

Northwest winds behind this storm will be blustery Monday and Tuesday but should not be overly strong.

Another stretch of quiet and sunny weather is likely to build in starting Wednesday and lasting the rest of the workweek next week.

There are some slight snow chances being hinted at on the models for Christmas time, leaving a small window open for a chance at a White Christmas.

More Information:

» Finger Lakes Weather Radar

» Finger Lakes Weather Radar

» Zip Code Forecasts

» Your Forecast

» Get the FLX Weather Mobile App

finger lakes weather 7-day forecast fri dec 15 | fri, sunny a few thin clouds low 50 | sat, mostly cloudy mid 40 | sun, rain by evening near 50 | mon, periods of rain low 40 | tues, snow showers near 30 | wed, sun and clouds upper 30 | thur, sun and clouds upper 30
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected.

finger lakes weather 2024 calendar and almanac, last chance sales close friday evening

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.