Temperatures, rain chances on the rise

finger lakes weather forecast tuesday september 10 2019 sun warm clouds rain wednesday thunderstorms
South winds and sunshine will result in a big warm up over the course of today. Some clouds will work in late but most of the rain should wait for Wednesday. [Photo be Meteorologist Drew Montreuil]

Summer in September

The Finger Lakes had its taste of early autumn, but Summer is not quite done with the area either.

Temperatures are starting off around 50 degrees this morning, but an increasing south wind and some sunshine will bring quick warming. By this afternoon, temperatures will be about thirty degrees warmer, topping out around 80 degrees.

As the day goes on, some thin cloud cover high in the atmosphere will start to stream in from the west. This will filter the sunshine but should not completely block it out, at least initially. A few thicker clouds may skirt through during the late afternoon, especially across the northern half of the region.

On or two showers could even accompany some of those clouds. If it does rain at all today, it should be very light and brief. The radar may show more rain than is actually falling as some or all of the precipitation will evaporate before reaching the surface.

However, the chances for rain will increase as we head through the night and into Wednesday. Clouds will thicken and a few isolated showers will be possible overnight. With the clouds and a persistent south wind, it will be a warm night with lows in the upper 60s.

A couple showers will continue to be possible early Wednesday morning. Outside of these few showers there will be a mix of sun and clouds. Temperatures will quickly jump, reaching the low and mid 80s across the region.

Around 4 PM on Wednesday, thunderstorms should start to pop up. These thunderstorms will be isolated at first but could grow into a few clusters. There is a small window for a few strong storms between 5-7 PM once the storms get going, but before the daytime heating is lost. Gusty winds will be the primary threat.

Showers and non-severe thunderstorms will continue for a few hours after sunset before moving south and east. A few scattered showers, along with some fog and drizzle, will be possible into Thursday morning.

End of the Week Weather

After the clouds and few showers early Thursday, dry air should gradually work in from the north. Clouds should eventually give way to some sunshine during the afternoon.

North winds will blow throughout the day with gusts of 15-20 mph and higher along the shore of Lake Ontario. The clouds and north winds will keep temperatures down with highs mostly in the upper 60s.

Friday will be a windy day as high pressure drops into northern New England and a strong low pressure tracks into the Upper Great Lakes. Wind gusts could be as high as 35 mph. Winds will come from the southeast, which is not the typical direction we see gusty winds from.

The southeast winds will bring in moisture from the Atlantic Ocean, keeping skies quite cloudy. A stray shower or two cannot be ruled out, either.  Temperatures will be a bit warmer, with highs mostly in the low 70s.

Blustery winds will continue Friday night into Saturday but will turn to the southwest. That should drive temperatures Saturday into the upper 70s with clouds and a few showers as a front slides through. Sunday will be a bit cooler, but pleasant, with highs in the low 70s.

Mild to very warm conditions are expected next week with highs consistently in the 70s and 80s. Above normal temperatures are expected for much of the remainder of September.

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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.