A heat advisory remains in effect for southern Connecticut until 9 p.m. Tuesday, July, 3, with temperates expected to reach as high as 9o degrees Fahrenheit.

The heat index is forecasted at 99 in the Danbury area, according to the National Weather Service.

Rising temperatures may cause heat stress during outdoor exertion or extended exposure.

“Prolonged period of heat index values of at least 95 expected through the Fourth of July," the weather service said in a message Monday. “Heat related illnesses possible through this time period, especially for at-risk populations such as the elderly, very young, and those with mental illnesses."

A heat advisory is put in effect when the maximum apparent temperature is greater than 95 degrees for two consecutive days, the weather service said in its advisory message to residents at 5 a.m. Tuesday morning.

Ridgefield temperatures were reportedly as high as 97 degrees Sunday, July 1.

The max heat index value in Danbury Wednesday, July 4, is forecasted at 90.

The temperature is supposed to dip again Wednesday— to 85 degrees — for the Fourth of July holiday.

The heat index forecast for Thursday, July 5, is 90.

"Heat index values are forecast to approach 95 across portions of the Tri-

State area through the 5th of July," the weather service said.

There is no expected briefing tonight — Tuesday, July 3, the weather service said.

For more information, visit www.weather.gov/okx/