Heat wave coming: What you need to know

The National Weather Service says most of Connecticut will likely have the first heat wave of the season this weekend and into early next week.

“After a frontal system pushes through Friday evening, high pressure builds in with rising temperatures looking very likely into the weekend and early next week,” the NWS says.

“ Widespread 90s with heat index values approaching 100 in some locations by Sunday/Monday.”

To be an official heat wave, there needs to be at least three consecutive days of 90-degree or above temperatures.

Hartford and Bradley International Airport in Windsor Locks had their first heat wave from June 20-22 when temperatures were in the low 90s.

During that period, Danbury set new high temperature records with 86 degrees on June 20 and 21.

Along the shoreline, highest temperature was 86 degrees - 12 degrees above average.

With the hottest temperatures of the year expected this weekend and early next week, here’s what you needed to know in what likely will be the first heat wave of the summer.

Temperatures of 90 or above are expected Saturday through Tuesday.

Hottest days will be Saturday and Sunday with highs near the low to mid-90s.

Sunday will be the hottest day of the weekend.

Generally between noon and 6 p.m.

The heat index will make it seem like 103 degrees on Saturday and Sunday.

Saturday: Sunny and hot, with a high near 90. Light west wind.

Saturday Night: Mostly clear, with a low around 68.

Sunday: Mostly sunny and hot, with a high near 93.

Sunday Night: Partly cloudy, with a low around 72.

The Heat Index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature. To find the Heat Index temperature, look at the Heat Index Chart above or check our Heat Index Calculator. As an example, if the air temperature is 96°F and the relative humidity is 65%, the heat index--how hot it feels--is 121°F.

The farther away from the shoreline the warmest the tenperatures.

Inland areas like Danbury, Torrington, Middletown and Hartford will see at least three days of 90 degrees of above temperatures. The shoreline will have temps well into the upper 80s and low 90s.

A sea breeze will keep temps a few degrees cooler along the shoreline.

Water temperature in Long Island Sound has warmed up to 72 degrees in the New Haven area and near 70 in southeast Connecticut.

Tides this weekend

High tides during the day this weekend will be mid to late morning.

For tide tables chick here.

Because of the coronavirus pandemic, state parks have reduced parking at all state parks to allow for social distances.

Once parking capacity is filled, parts are closed and no walkins are allowed. State parks closings are announced at


Swimming is also banned at all inland state parks.

For a list of rules at state parks, click here.

That leaves only four state beaches were swimmimg is allowed in Long Island Sound at Sherwood Island in Westport, Silver Sands in Milford, Hammomaasset in Madison and Rocky Neck in East Lyme.

All of these parks will likely reach parking capacity by 11 a.m. this weekend; probably sooner.

Getting there as early as possible would be a wise choice.

Also have a backup plan.

This website - provides information on the status of swimming areas throughout the state to help you plan ahead. Please note that information is updated frequently but may not reflect all daily capacity closures, so it’s best to check local sources of information to confirm whether a location is open on a given day.

Most town-owned Long Island Sound beaches charge parking rates of up to $75 for out of towners.

Connecticut Media Group