Friday starts with a few clouds in the morning, but we will notice a gradual increase in clouds through the rest of the day. The day will remain dry with seasonal temperatures in the mid 80s. It will also be a noticeably more humid afternoon.
Saturday will also start rain-free; however, rain and thunderstorm chances increase toward the afternoon as low pressure approaches from the west. This system will spread scattered rain showers, and perhaps some embedded thunder, into eastern Ohio through the afternoon and evening.
Showers/thunderstorms are likely to continue Saturday night into Sunday as the low progresses eastward across the region. By Sunday afternoon, we should begin to see rain/thunder chances taper off by late afternoon into Sunday evening. Any showers/storms overnight should be fairly isolated/scattered.
While temperatures on Sunday will be cooler with daytime highs in the upper 70s, it will be noticeably more humid with area dew points hovering around 70°.
As of Friday morning, there is model uncertainty on how quickly this system exits east of the area, so isolated showers/storms could stick around through Monday. At this point, I do expect Monday to be mainly dry in most locations; however, a renegade shower can’t be completely ruled out.
Locally, rain amounts through the weekend look to run between a half to three-quarters of an inch from Friday night through Sunday night. Some neighborhoods could see higher amounts, especially Saturday night into the wee hours Sunday morning. This will be the best potential for periods of heavy rainfall.
If the low meanders nearby as some modeling suggests, the potential for showers and storms could continue into midweek. It won’t rain all the time, but the threat of a shower or storm will remain through Tuesday or Wednesday.
The atmosphere will become more tropical as we wrap up July and step into the first week of August. Those 50s dew points will increase beginning on Friday and remain elevated into next week.
