A very ugly week (May 14-20) is ahead as rounds of rain and thunderstorms move through due to an influx of tropical moisture all the way from the Caribbean. This will also keep temperatures cool at times, keeping them down into the 60s. [Check out our exclusive video forecast, below…]

Monday, May 14:  Monday will be the nicest day of the week so hopefully you spend part of your day outside, because the weather won’t be the most conducive for the remainder of the week. Expect low clouds gradually clearing to sunshine. Watch for some early patchy fog. High temperatures will be mild, maxing out into the low 70s.

Tuesday, May 15:  On Tuesday, it’s going to turn hot and humid. High temperatures will top off at around 80 degrees paired with dew points in the mid 60s, which resembles a sticky air mass. Expect a blend of sun and clouds with passing showers and thunderstorms, mainly in the afternoon.

Wednesday, May 16:  Beginning Wednesday and lasting at least through this coming weekend, we’re going to be experiencing a constant feed of tropical moisture from the Caribbean Sea. The pattern is basically going to be locked in as a high pressure off the East Coast becomes stagnant. Therefore, the risk for rain exists for almost the rest of this week, including on Wednesday with a few showers and thunderstorms possible. It will be much cooler with high temperatures only in the low 60s.

Thursday, May 17:  On Thursday, it actually will be a dry day as high pressure over New England suppresses the moisture to the south–for now. That will allow for mostly sunny skies and a high temperature near 70 degrees.

Friday, May 18:  The rain unfortunately will return on Friday as a plume of highly-anomalous moisture works up the East Coast. These moisture plumes can be measured by sampling how much water there is in the atmosphere, or precipitable water, at a given time. On Friday, precipitable water values are forecast to near two inches. The current record for the date is 1.55 inches. I’m sure this is a kind of record that you’ve never heard of before, but they do exist! Along with the rain will be a return to the cooler, below-average temperatures. Highs will only be in the 60s.

Saturday, May 19:  The forecast will remain ugly for the weekend, especially on Saturday. Expect additional rain and even some thunderstorms throughout the day with temperatures only maxing out in the upper 60s. It’s worth noting how this rain is really putting a damper on the temperatures because, given the upper-level setup in our atmosphere, we should be experiencing mild temperatures nearing 90 degrees.

Sunday, May 20:  On Sunday, only an isolated thunderstorm will be possible as a cold front slowly tracks in from the Great Lakes region. Once that front passes through early-next week, hopefully we’ll be able to transition into a nicer and drier stretch of weather. We’re going to want the sunshine back after this ugly week.