One more day of hazardous heat and humidity

finger lakes weather forecast wednesday september 5 2018 hot humid dewpoint heat index heat advisory
Sunny skies will beat down on the Finger Lakes as heat index values once again go over 95 degrees. [Photo by Joan Lockwood]

Another Heat Advisory

Heat advisories are once more in place for most of the Finger Lakes with another very hot, humid day on the way.

Temperatures will be off to the races this morning under mostly sunny skies. After starting in the upper 60s and low 70s, temperatures should be well into the 80s by noon with heat indices into the 90s.

There will be some areas of valley fog early on this morning as well, but that should burn off rather quickly.

Only a few small fair-weather clouds are expected through the morning and early afternoon with high pressure firmly in control. Late in the afternoon, the high will start to lose its grip and larger cumulus clouds may start to develop.

A stray shower or thunderstorm may try to develop after 5 pm, especially to the south and southeast of Lake Ontario. Most areas should not see rain.

Temperatures will top out in the upper 80s and low 90s for most of the region. With dewpoints in the 70s again, heat index values will rise above 95 degrees. The heat today will be very similar what it felt like on Monday.

Relief Works In

With a little luck, today will be the worst heat we see for a very long time in the Finger Lakes.

A cold front will move into the region during the second half of the overnight period and into Thursday morning. A few scattered showers and even a  thunderstorm will accompany the front, but most areas will not see much rain. Most of the showers should be south of the Finger Lakes by noon on Thursday.

Thursday morning will likely start out mild and muggy, but less humid air will work in for the second half of the day. Dewpoints will drop back into the 60s and temperatures should hold in the mid and upper 70s.

High pressure will then build in from Canada, reinforcing the cooler, less humid air and resulting in a very nice weekend.

A good deal of sunshine should be expected Friday, Saturday, and even Sunday though some high, thin clouds will start to work in.

Temperatures will still be in the 70s on Friday, but highs may struggle to get beyond 70 degrees Saturday and Sunday.

A heavy rain event will be possible on Monday as the remains of Tropical Storm Gordon work through the region as a non-tropical low pressure system. Temperatures will slowly warm beyond that and should be above normal, but not extreme.

Mid-September can still be hot in the Finger Lakes, so we cannot declare ourselves done with summer-like heat after today, but the chances for 90 degree days will start to drop off significantly over the next few weeks.

You can get the forecast for your zip-code by filling in the box below. Bookmark your page on all your devices so you can always get the best weather for the Finger Lakes. You can read more about these zip-code forecasts here.

Get the detailed forecast for your exact location! Enter your Zip-Code here:
Meteorologist Drew Montreuil
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.). When not forecasting, he can be found working at the local library, making goat milk soap, running until his legs burn, or playing with his three young boys.