We are now entering the last week of meteorological summer, which lasts June, July, and August. In just a few short days, we turn the page to September and closer to the official start of fall. It won't feel like it much of this week however, as we stare down another heatwave.
Tomorrow will be day 1 of the heat wave for a number of spots in interior Connecticut. Although the humidity will increase a bit, tomorrow does not look oppressive.
These two days are the worst of the heat statewide. I expect to see hazy, hot, and humid conditions that are oppressive. I wouldn't be surprised to see heat advisories issued for the state during this period. Highs will range in the mid to upper 90s inland, and just a few degrees lower along much of the shoreline. The heat index will likely range near to just above 100 for inland spots. There won't be much relief in the way of afternoon thunderstorms, with rain chances being very low.
Earlier it looked like Thursday would be the day the heat wave breaks, but now it is looking like the cold front that will bring relief is going to be hung up in the region, making it more likely that Thursday is another 90 degree day. With the front close by, this is our chance to see showers and thunderstorms, most likely to occur in the late afternoon and evening hours.
Some guidance is suggesting that the front remains stalled over the region and instead of a nice period, it is cloudy and wet. Despite this past weekend being the only fully dry weekend in over a month, I'm going to buck the trend and forecast a mostly dry Labor Day weekend. The weekend should be refreshing, with highs in the low 80s and much lower humidity. I'll only introduce small odds of showers in the dailies.
Monday: Partly sunny with increased humidity. Highs in the upper 80s to low 90s.
Tuesday: Partly sunny, hot and humid. Highs in the mid to upper 90s inland and low 90s at the shore (outside of SE CT).
Wednesday: Partly sunny, hot and humid. Highs in the mid to upper 90s inland and low 90s at the shore.
Thursday: Increasing clouds with a chance of showers and storms in the afternoon and evening. Highs in the upper 80s to near 90. Chance of rain 50%.
Friday: Partly sunny with lower humidity. Highs in the upper 70s to low 80s. Chance of showers 20%.
Saturday: Partly sunny and comfortable. Highs in the upper 70s to low 80s. Chance of showers 20%.
Sunday: Partly sunny. Highs in the low to mid 80s. Chance of showers 20%.
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