Warmer weather builds back in this weekend, sticks around

finger lakes weather forecast friday october 1 2021 sun clouds rain weekend warm
Temperatures will bounce back this weekend with mixed skies today, sunshine Saturday, and rain for Sunday. [Photo by Gwen Moshier]

Transitioning from Cool to Warm

The air is chilly across the Finger Lakes this morning and will remain cool this afternoon, but warmer air will soon take back control.

Conditions are mixed across the region this morning. Areas of valley fog exist in the Southern Tier, some lingering lake effect clouds are in the far north, and a deck of low clouds is in the far west. The rest of the region is clear, for now.

As daytime heating kicks in and temperatures start to rise through the 40s and into the 50s, the fog and low clouds in the south and west will burn off, but the lake effect clouds to the north will expand, aided by a turn in the wind to the northwest.

Skies may become rather cloudy from the late morning through the early afternoon. A few breaks of sun will be possible, similar to yesterday. These clouds should break up and move out during the mid afternoon, leaving skies mostly clear again by the end of the day.

Temperatures will mostly be in the low 60s this afternoon. The I-90 corridor will reach the mid 60s, and areas in and immediately surrounding Cortland County will stick to the upper 50s.

Winds will turn to the southwest tonight, keeping temperatures warmer than they were last night despite mostly clear skies. Roughly speaking, the northern half of the region will be in the low and mid 50s, while the southern half will be in the upper and mid 40s.

Warm air will push into the region in earnest on Saturday. With only some thin clouds to occasionally filter the sunshine, high temperatures will mostly be in the mid 70s. Higher elevations will be in the low 70s.

finger lakes weather 7-day forecast friday october 1 2021
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.

Rain Returns, Too

A weather system will move into the area on Sunday and take its time to pass through.

Clouds will increase Saturday night, which, along with the wind, will hold temperatures in the low and mid 50s.

Rain showers will move in Sunday morning and continue on and off throughout the day. There should be a decent amount of dry time between showers, and if some sun pokes through during the afternoon, a few rumbles of thunder may be able to develop.

High temperatures will generally be around 70 degrees. Clouds and showers will continue through the night. With winds from the south, nighttime temperatures will stick to the low 60s.

Monday will be similar to Sunday with on and off rain showers. In the 7-Day Forecast graphic, I opted to use the rain icon instead of the scattered showers icon to indicate a difference in the amount of rain compared to Tuesday, Wednesday, and Thursday. Again though, there should be dry time between showers, and neither day looks like a complete washout.

The rain on Tuesday, Wednesday, and Thursday is both less certain and less impressive. Most of these days will be dry, and some areas may go all three days without any rain. Exactly how the rain chances unfold is still a bit uncertain though. At this time, Tuesday looks to have a lower chance for rain than Monday, but higher than Wednesday or Thursday.

Regardless of the rain, temperatures should remain on the mild side. After reaching the 70s on Tuesday, upper 60s are more likely for Wednesday and Thursday. More sun any of these days could add a few degrees to what is currently forecast.

The warm weather will not end there, either. By next weekend, highs should push back into the 70s. Throughout next week, overnight temperatures will be in the 50s and 60s.

It is not until the following week, as we head into the middle of October, that cooler weather may make a comeback.

More Information:

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finger lakes weather 7-day forecast friday october 1 2021
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected.

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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.