Turning hot and humid again towards the end of the week

Monday will bring a fair summer day to the Valley. High pressure just off to our west will bring sunshine to the area today. Expect some afternoon cumulus clouds through the early evening. There is not much instability present today so odds for these building into thunderstorms is pretty low. High temperatures today will top out in the low-80s locally and with dew points in the upper-50s to low-60s, it will feel very pleasant outside.

Clouds should mix out as we approach sunset this evening. Those folks looking to get a glimpse of comet NEOWISE just after sunset will likely have mostly cloud-free conditions.

That broad high pressure will shift east and set up nearly directly overhead of us on Tuesday. We’ll have another dry day tomorrow. Temperatures will be a bit warmer – mid-80s – and the humidity continues to not be an issue. Enjoy these next couple of days. We will start to heat up again and it will turn more humid during the second half of the week.

HIGH PRESSURE nearly directly overhead will provide for a sunny and dry day Tuesday

Temperatures will heat up to around 90° by Wednesday under nearly cloud-free skies. Dew points locally will still be in the low-60s, so even though it will be a hot day, the humidity will remain in check.

Chances for showers and thunderstorms will return on Thursday as a very weak cold front advances toward Ohio from the west. There are some model differences with regards to the timing but generally, expect spotty showers and storms in the region at some point on Thursday. Temperatures will be a few degrees cooler on Thursday, but still in the upper-80s. Dew points will increase to around 70-ish, so it will turn noticeably more humid. The extra humidity will make it feel much hotter than upper-80s.


A more zonal flow (west to east) is likely to set up on Friday. Warm moist air will push temperatures back to the low-90s once again on Friday. An upper-level ridge builds and shifts east through the weekend pushing ever warming temperatures to the mid-90s by Sunday. In addition to the hot temperatures, dew points will remain in the low-70s pushing heat index values to the upper-90s to near 100° Saturday and Sunday.

NATIONAL WEATHER SERVICE National Blend of Models (NBOM) temperature trend over the next 10 days.

All three ingredients for thunderstorms – moisture, unstable air, and lift – will be present as well. So, expect occasional rain and thunder at times during peak heating in the afternoons. I can’t say for sure this far out but conditions will likely favor strong storms.

Climate models indicate that the hot and humid weather that arrives late in the week will persist into next week as well.



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