Connecticut Weather: Slight Thunderstorm Chance Today, Heatwave Begins Sunday

Connecticut’s first heatwave of the season arrives Sunday in Connecticut as we’ll hit 90 degrees and those temperatures will last through Tuesday before we see some relief on Wednesday.

Before we get to the summer-like heat we have to be prepared for the chance of some brief heavy rain and or a thunderstorm on Friday afternoon, said NBC Connecticut Meteorologist Ryan Hanrahan.

“A few downpours and thunderstorms possible Friday afternoon. Won't last long but keep an eye on the northwestern sky if you're going to be outside tomorrow!,” Hanrahan wrote late Thursday.

There is also a chance for a brief shower on Saturday too. (SIGN UP: Get Patch's Daily Newsletter and Real Time News Alerts. Or, if you have an iPhone, download the free Patch app.)

WTNH News 8 Meteorologist Gil Simmons wrote, “A nice morning with sunshine followed by a brief thunderstorm threat this afternoon. It will dry out and it will be fine for Friday evening. Clouds & a quick shower possible tomorrow but also some sunshine high temps in the 70s low 80s. Hazy, hot and humid for Sunday with highs up around 90 & NO rain."

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Here’s the updated forecast via the National Weather Service:

Friday: Partly sunny. Chance for a shower and or thunderstorm this afternoon. High temp in the mid to upper 70s.

Saturday: Chance of showers and a thunderstorm between noon and 3 p.m. Plenty of sun too with temps warming to the low 80s.

Sunday: Heatwave begins, temps near 90. Sunshine.

Monday: More 90 degrees and sun.

Tuesday: Continued 90 degrees and sunshine.